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Finding the Fourth Proportional to 18,134.60, 27,189.14 and 7,031.93

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Solution

The fourth proportional to 18,134.60, 27,189.14 and 7,031.93 is: 10,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.60 : 27,189.14 = 7,031.93 : x
  2. Step 2: Convert to fraction form
    18,134.60/27,189.14 = 7,031.93/x
  3. Step 3: Cross multiply
    18,134.60x = 27,189.14 × 7,031.93
  4. Step 4: Simplify right side
    18,134.60x = 191,192,214.79
  5. Step 5: Solve for x
    x = 191,192,214.79/18,134.60
  6. Step 6: Final answer
    x = 10,542.95

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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.