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Finding the Fourth Proportional to 18,456.38, 27,671.16 and 7,359.74

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Solution

The fourth proportional to 18,456.38, 27,671.16 and 7,359.74 is: 11,034.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.38 : 27,671.16 = 7,359.74 : x
  2. Step 2: Convert to fraction form
    18,456.38/27,671.16 = 7,359.74/x
  3. Step 3: Cross multiply
    18,456.38x = 27,671.16 × 7,359.74
  4. Step 4: Simplify right side
    18,456.38x = 203,652,612.28
  5. Step 5: Solve for x
    x = 203,652,612.28/18,456.38
  6. Step 6: Final answer
    x = 11,034.26

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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.