Home / 16,517.88-24,780.96-5,425.20

Finding the Fourth Proportional to 16,517.88, 24,780.96 and 5,425.20

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Solution

The fourth proportional to 16,517.88, 24,780.96 and 5,425.20 is: 8,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,517.88 : 24,780.96 = 5,425.20 : x
  2. Step 2: Convert to fraction form
    16,517.88/24,780.96 = 5,425.20/x
  3. Step 3: Cross multiply
    16,517.88x = 24,780.96 × 5,425.20
  4. Step 4: Simplify right side
    16,517.88x = 134,441,664.19
  5. Step 5: Solve for x
    x = 134,441,664.19/16,517.88
  6. Step 6: Final answer
    x = 8,139.16

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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.