Home / 15,540.71-23,311.23-12,440.43

Finding the Fourth Proportional to 15,540.71, 23,311.23 and 12,440.43

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Solution

The fourth proportional to 15,540.71, 23,311.23 and 12,440.43 is: 18,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.71 : 23,311.23 = 12,440.43 : x
  2. Step 2: Convert to fraction form
    15,540.71/23,311.23 = 12,440.43/x
  3. Step 3: Cross multiply
    15,540.71x = 23,311.23 × 12,440.43
  4. Step 4: Simplify right side
    15,540.71x = 290,001,684.26
  5. Step 5: Solve for x
    x = 290,001,684.26/15,540.71
  6. Step 6: Final answer
    x = 18,660.77

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Similar ratio
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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.