Home / 13,511.04-18,646.64-7,544.76

Finding the Fourth Proportional to 13,511.04, 18,646.64 and 7,544.76

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Solution

The fourth proportional to 13,511.04, 18,646.64 and 7,544.76 is: 10,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.04 : 18,646.64 = 7,544.76 : x
  2. Step 2: Convert to fraction form
    13,511.04/18,646.64 = 7,544.76/x
  3. Step 3: Cross multiply
    13,511.04x = 18,646.64 × 7,544.76
  4. Step 4: Simplify right side
    13,511.04x = 140,684,423.61
  5. Step 5: Solve for x
    x = 140,684,423.61/13,511.04
  6. Step 6: Final answer
    x = 10,412.55

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Find fourth proportional to 6,755.52, 9,323.32 and 3,772.38
Half scale
Find fourth proportional to 27,022.08, 37,293.28 and 15,089.52
Double scale
Find fourth proportional to 13,512.04, 18,648.02 and 7,545.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.