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Finding the Fourth Proportional to 19,452.11, 29,177.91 and 8,919.14

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Solution

The fourth proportional to 19,452.11, 29,177.91 and 8,919.14 is: 13,378.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,452.11 : 29,177.91 = 8,919.14 : x
  2. Step 2: Convert to fraction form
    19,452.11/29,177.91 = 8,919.14/x
  3. Step 3: Cross multiply
    19,452.11x = 29,177.91 × 8,919.14
  4. Step 4: Simplify right side
    19,452.11x = 260,241,718.31
  5. Step 5: Solve for x
    x = 260,241,718.31/19,452.11
  6. Step 6: Final answer
    x = 13,378.59

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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.