Home / 15,719.40-23,579.10-5,331.15

Finding the Fourth Proportional to 15,719.40, 23,579.10 and 5,331.15

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Solution

The fourth proportional to 15,719.40, 23,579.10 and 5,331.15 is: 7,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719.40 : 23,579.10 = 5,331.15 : x
  2. Step 2: Convert to fraction form
    15,719.40/23,579.10 = 5,331.15/x
  3. Step 3: Cross multiply
    15,719.40x = 23,579.10 × 5,331.15
  4. Step 4: Simplify right side
    15,719.40x = 125,703,718.97
  5. Step 5: Solve for x
    x = 125,703,718.97/15,719.40
  6. Step 6: Final answer
    x = 7,996.73

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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.