Home / 14,542.62-21,813.66-7,139.22

Finding the Fourth Proportional to 14,542.62, 21,813.66 and 7,139.22

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Solution

The fourth proportional to 14,542.62, 21,813.66 and 7,139.22 is: 10,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,542.62 : 21,813.66 = 7,139.22 : x
  2. Step 2: Convert to fraction form
    14,542.62/21,813.66 = 7,139.22/x
  3. Step 3: Cross multiply
    14,542.62x = 21,813.66 × 7,139.22
  4. Step 4: Simplify right side
    14,542.62x = 155,732,517.75
  5. Step 5: Solve for x
    x = 155,732,517.75/14,542.62
  6. Step 6: Final answer
    x = 10,708.70

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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.