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Finding the Fourth Proportional to 18,452.98, 27,677.30 and 5,126.99

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Solution

The fourth proportional to 18,452.98, 27,677.30 and 5,126.99 is: 7,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,452.98 : 27,677.30 = 5,126.99 : x
  2. Step 2: Convert to fraction form
    18,452.98/27,677.30 = 5,126.99/x
  3. Step 3: Cross multiply
    18,452.98x = 27,677.30 × 5,126.99
  4. Step 4: Simplify right side
    18,452.98x = 141,901,240.33
  5. Step 5: Solve for x
    x = 141,901,240.33/18,452.98
  6. Step 6: Final answer
    x = 7,689.88

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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.