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Finding the Fourth Proportional to 16,879.56, 25,312 and 6,484

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Solution

The fourth proportional to 16,879.56, 25,312 and 6,484 is: 9,723.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.56 : 25,312 = 6,484 : x
  2. Step 2: Convert to fraction form
    16,879.56/25,312 = 6,484/x
  3. Step 3: Cross multiply
    16,879.56x = 25,312 × 6,484
  4. Step 4: Simplify right side
    16,879.56x = 164,123,008
  5. Step 5: Solve for x
    x = 164,123,008/16,879.56
  6. Step 6: Final answer
    x = 9,723.18

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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.