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Finding the Fourth Proportional to 18,293, 25,244.52 and 9,909.68

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Solution

The fourth proportional to 18,293, 25,244.52 and 9,909.68 is: 13,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293 : 25,244.52 = 9,909.68 : x
  2. Step 2: Convert to fraction form
    18,293/25,244.52 = 9,909.68/x
  3. Step 3: Cross multiply
    18,293x = 25,244.52 × 9,909.68
  4. Step 4: Simplify right side
    18,293x = 250,165,114.95
  5. Step 5: Solve for x
    x = 250,165,114.95/18,293
  6. Step 6: Final answer
    x = 13,675.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.