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Finding the Fourth Proportional to 17,898.98, 26,849.99 and 5,419.10

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Solution

The fourth proportional to 17,898.98, 26,849.99 and 5,419.10 is: 8,129.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,898.98 : 26,849.99 = 5,419.10 : x
  2. Step 2: Convert to fraction form
    17,898.98/26,849.99 = 5,419.10/x
  3. Step 3: Cross multiply
    17,898.98x = 26,849.99 × 5,419.10
  4. Step 4: Simplify right side
    17,898.98x = 145,502,753.71
  5. Step 5: Solve for x
    x = 145,502,753.71/17,898.98
  6. Step 6: Final answer
    x = 8,129.11

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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.