Home / 15,497.87-21,387.15-9,124.70

Finding the Fourth Proportional to 15,497.87, 21,387.15 and 9,124.70

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Solution

The fourth proportional to 15,497.87, 21,387.15 and 9,124.70 is: 12,592.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,497.87 : 21,387.15 = 9,124.70 : x
  2. Step 2: Convert to fraction form
    15,497.87/21,387.15 = 9,124.70/x
  3. Step 3: Cross multiply
    15,497.87x = 21,387.15 × 9,124.70
  4. Step 4: Simplify right side
    15,497.87x = 195,151,220.67
  5. Step 5: Solve for x
    x = 195,151,220.67/15,497.87
  6. Step 6: Final answer
    x = 12,592.14

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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.