Home / 15,340.12-22,999.92-12,382.20

Finding the Fourth Proportional to 15,340.12, 22,999.92 and 12,382.20

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Solution

The fourth proportional to 15,340.12, 22,999.92 and 12,382.20 is: 18,565.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340.12 : 22,999.92 = 12,382.20 : x
  2. Step 2: Convert to fraction form
    15,340.12/22,999.92 = 12,382.20/x
  3. Step 3: Cross multiply
    15,340.12x = 22,999.92 × 12,382.20
  4. Step 4: Simplify right side
    15,340.12x = 284,789,609.42
  5. Step 5: Solve for x
    x = 284,789,609.42/15,340.12
  6. Step 6: Final answer
    x = 18,565.02

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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.