Home / 9,542.70-13,181.20-7,331.78

Finding the Fourth Proportional to 9,542.70, 13,181.20 and 7,331.78

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Solution

The fourth proportional to 9,542.70, 13,181.20 and 7,331.78 is: 10,127.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,542.70 : 13,181.20 = 7,331.78 : x
  2. Step 2: Convert to fraction form
    9,542.70/13,181.20 = 7,331.78/x
  3. Step 3: Cross multiply
    9,542.70x = 13,181.20 × 7,331.78
  4. Step 4: Simplify right side
    9,542.70x = 96,641,658.54
  5. Step 5: Solve for x
    x = 96,641,658.54/9,542.70
  6. Step 6: Final answer
    x = 10,127.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.