Home / 13,511.74-18,646.02-7,543.50

Finding the Fourth Proportional to 13,511.74, 18,646.02 and 7,543.50

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Solution

The fourth proportional to 13,511.74, 18,646.02 and 7,543.50 is: 10,409.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.74 : 18,646.02 = 7,543.50 : x
  2. Step 2: Convert to fraction form
    13,511.74/18,646.02 = 7,543.50/x
  3. Step 3: Cross multiply
    13,511.74x = 18,646.02 × 7,543.50
  4. Step 4: Simplify right side
    13,511.74x = 140,656,251.87
  5. Step 5: Solve for x
    x = 140,656,251.87/13,511.74
  6. Step 6: Final answer
    x = 10,409.93

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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.