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Finding the Fourth Proportional to 18,572.59, 27,859.02 and 5,434.12

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Solution

The fourth proportional to 18,572.59, 27,859.02 and 5,434.12 is: 8,151.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,572.59 : 27,859.02 = 5,434.12 : x
  2. Step 2: Convert to fraction form
    18,572.59/27,859.02 = 5,434.12/x
  3. Step 3: Cross multiply
    18,572.59x = 27,859.02 × 5,434.12
  4. Step 4: Simplify right side
    18,572.59x = 151,389,257.76
  5. Step 5: Solve for x
    x = 151,389,257.76/18,572.59
  6. Step 6: Final answer
    x = 8,151.22

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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.