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Finding the Fourth Proportional to 18,117.96, 27,147.65 and 9,801.90

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Solution

The fourth proportional to 18,117.96, 27,147.65 and 9,801.90 is: 14,687.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.96 : 27,147.65 = 9,801.90 : x
  2. Step 2: Convert to fraction form
    18,117.96/27,147.65 = 9,801.90/x
  3. Step 3: Cross multiply
    18,117.96x = 27,147.65 × 9,801.90
  4. Step 4: Simplify right side
    18,117.96x = 266,098,501.53
  5. Step 5: Solve for x
    x = 266,098,501.53/18,117.96
  6. Step 6: Final answer
    x = 14,687.00

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1.5x scale

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.