Home / 16,517.71-24,779.14-5,421.87

Finding the Fourth Proportional to 16,517.71, 24,779.14 and 5,421.87

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Solution

The fourth proportional to 16,517.71, 24,779.14 and 5,421.87 is: 8,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,517.71 : 24,779.14 = 5,421.87 : x
  2. Step 2: Convert to fraction form
    16,517.71/24,779.14 = 5,421.87/x
  3. Step 3: Cross multiply
    16,517.71x = 24,779.14 × 5,421.87
  4. Step 4: Simplify right side
    16,517.71x = 134,349,275.79
  5. Step 5: Solve for x
    x = 134,349,275.79/16,517.71
  6. Step 6: Final answer
    x = 8,133.65

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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.