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Finding the Fourth Proportional to 16,642.72, 24,964.02 and 6,779.80

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Solution

The fourth proportional to 16,642.72, 24,964.02 and 6,779.80 is: 10,169.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,642.72 : 24,964.02 = 6,779.80 : x
  2. Step 2: Convert to fraction form
    16,642.72/24,964.02 = 6,779.80/x
  3. Step 3: Cross multiply
    16,642.72x = 24,964.02 × 6,779.80
  4. Step 4: Simplify right side
    16,642.72x = 169,251,062.80
  5. Step 5: Solve for x
    x = 169,251,062.80/16,642.72
  6. Step 6: Final answer
    x = 10,169.68

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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.