Home / 18,219.59-27,324.15-7,691.98

Finding the Fourth Proportional to 18,219.59, 27,324.15 and 7,691.98

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Solution

The fourth proportional to 18,219.59, 27,324.15 and 7,691.98 is: 11,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.59 : 27,324.15 = 7,691.98 : x
  2. Step 2: Convert to fraction form
    18,219.59/27,324.15 = 7,691.98/x
  3. Step 3: Cross multiply
    18,219.59x = 27,324.15 × 7,691.98
  4. Step 4: Simplify right side
    18,219.59x = 210,176,678.70
  5. Step 5: Solve for x
    x = 210,176,678.70/18,219.59
  6. Step 6: Final answer
    x = 11,535.75

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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.