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Finding the Fourth Proportional to 16,658.30, 22,987.78 and 9,104.90

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Solution

The fourth proportional to 16,658.30, 22,987.78 and 9,104.90 is: 12,564.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.30 : 22,987.78 = 9,104.90 : x
  2. Step 2: Convert to fraction form
    16,658.30/22,987.78 = 9,104.90/x
  3. Step 3: Cross multiply
    16,658.30x = 22,987.78 × 9,104.90
  4. Step 4: Simplify right side
    16,658.30x = 209,301,438.12
  5. Step 5: Solve for x
    x = 209,301,438.12/16,658.30
  6. Step 6: Final answer
    x = 12,564.39

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1.5x scale

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.