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Finding the Fourth Proportional to 18,251.93, 27,427.35 and 9,938.09

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Solution

The fourth proportional to 18,251.93, 27,427.35 and 9,938.09 is: 14,934.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.93 : 27,427.35 = 9,938.09 : x
  2. Step 2: Convert to fraction form
    18,251.93/27,427.35 = 9,938.09/x
  3. Step 3: Cross multiply
    18,251.93x = 27,427.35 × 9,938.09
  4. Step 4: Simplify right side
    18,251.93x = 272,575,472.76
  5. Step 5: Solve for x
    x = 272,575,472.76/18,251.93
  6. Step 6: Final answer
    x = 14,934.06

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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.