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Finding the Fourth Proportional to 16,644.47, 22,969.42 and 9,090.88

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Solution

The fourth proportional to 16,644.47, 22,969.42 and 9,090.88 is: 12,545.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,644.47 : 22,969.42 = 9,090.88 : x
  2. Step 2: Convert to fraction form
    16,644.47/22,969.42 = 9,090.88/x
  3. Step 3: Cross multiply
    16,644.47x = 22,969.42 × 9,090.88
  4. Step 4: Simplify right side
    16,644.47x = 208,812,160.74
  5. Step 5: Solve for x
    x = 208,812,160.74/16,644.47
  6. Step 6: Final answer
    x = 12,545.44

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Half scale
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Double scale
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Similar ratio
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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.