Home / 15,787.92-23,651.50-9,867.12

Finding the Fourth Proportional to 15,787.92, 23,651.50 and 9,867.12

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Solution

The fourth proportional to 15,787.92, 23,651.50 and 9,867.12 is: 14,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787.92 : 23,651.50 = 9,867.12 : x
  2. Step 2: Convert to fraction form
    15,787.92/23,651.50 = 9,867.12/x
  3. Step 3: Cross multiply
    15,787.92x = 23,651.50 × 9,867.12
  4. Step 4: Simplify right side
    15,787.92x = 233,372,188.68
  5. Step 5: Solve for x
    x = 233,372,188.68/15,787.92
  6. Step 6: Final answer
    x = 14,781.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.