Home / 18,545.10-27,817.70-5,397.78

Finding the Fourth Proportional to 18,545.10, 27,817.70 and 5,397.78

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Solution

The fourth proportional to 18,545.10, 27,817.70 and 5,397.78 is: 8,096.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.10 : 27,817.70 = 5,397.78 : x
  2. Step 2: Convert to fraction form
    18,545.10/27,817.70 = 5,397.78/x
  3. Step 3: Cross multiply
    18,545.10x = 27,817.70 × 5,397.78
  4. Step 4: Simplify right side
    18,545.10x = 150,153,824.71
  5. Step 5: Solve for x
    x = 150,153,824.71/18,545.10
  6. Step 6: Final answer
    x = 8,096.68

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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.