Home / 18,000.91-27,001.61-6,314.47

Finding the Fourth Proportional to 18,000.91, 27,001.61 and 6,314.47

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Solution

The fourth proportional to 18,000.91, 27,001.61 and 6,314.47 is: 9,471.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.91 : 27,001.61 = 6,314.47 : x
  2. Step 2: Convert to fraction form
    18,000.91/27,001.61 = 6,314.47/x
  3. Step 3: Cross multiply
    18,000.91x = 27,001.61 × 6,314.47
  4. Step 4: Simplify right side
    18,000.91x = 170,500,856.30
  5. Step 5: Solve for x
    x = 170,500,856.30/18,000.91
  6. Step 6: Final answer
    x = 9,471.79

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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.