Home / 13,480.04-18,600.30-7,511.56

Finding the Fourth Proportional to 13,480.04, 18,600.30 and 7,511.56

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Solution

The fourth proportional to 13,480.04, 18,600.30 and 7,511.56 is: 10,364.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.04 : 18,600.30 = 7,511.56 : x
  2. Step 2: Convert to fraction form
    13,480.04/18,600.30 = 7,511.56/x
  3. Step 3: Cross multiply
    13,480.04x = 18,600.30 × 7,511.56
  4. Step 4: Simplify right side
    13,480.04x = 139,717,269.47
  5. Step 5: Solve for x
    x = 139,717,269.47/13,480.04
  6. Step 6: Final answer
    x = 10,364.75

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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.