Home / 18,069.20-27,112.32-6,387.92

Finding the Fourth Proportional to 18,069.20, 27,112.32 and 6,387.92

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Solution

The fourth proportional to 18,069.20, 27,112.32 and 6,387.92 is: 9,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,069.20 : 27,112.32 = 6,387.92 : x
  2. Step 2: Convert to fraction form
    18,069.20/27,112.32 = 6,387.92/x
  3. Step 3: Cross multiply
    18,069.20x = 27,112.32 × 6,387.92
  4. Step 4: Simplify right side
    18,069.20x = 173,191,331.17
  5. Step 5: Solve for x
    x = 173,191,331.17/18,069.20
  6. Step 6: Final answer
    x = 9,584.89

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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.