Home / 26,128.48-39,193.28-7,660.48

Finding the Fourth Proportional to 26,128.48, 39,193.28 and 7,660.48

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Solution

The fourth proportional to 26,128.48, 39,193.28 and 7,660.48 is: 11,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,128.48 : 39,193.28 = 7,660.48 : x
  2. Step 2: Convert to fraction form
    26,128.48/39,193.28 = 7,660.48/x
  3. Step 3: Cross multiply
    26,128.48x = 39,193.28 × 7,660.48
  4. Step 4: Simplify right side
    26,128.48x = 300,239,337.57
  5. Step 5: Solve for x
    x = 300,239,337.57/26,128.48
  6. Step 6: Final answer
    x = 11,490.88

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Double scale
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Similar ratio
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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.