Home / 15,990.38-23,993.66-10,657.20

Finding the Fourth Proportional to 15,990.38, 23,993.66 and 10,657.20

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Solution

The fourth proportional to 15,990.38, 23,993.66 and 10,657.20 is: 15,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.38 : 23,993.66 = 10,657.20 : x
  2. Step 2: Convert to fraction form
    15,990.38/23,993.66 = 10,657.20/x
  3. Step 3: Cross multiply
    15,990.38x = 23,993.66 × 10,657.20
  4. Step 4: Simplify right side
    15,990.38x = 255,705,324.97
  5. Step 5: Solve for x
    x = 255,705,324.97/15,990.38
  6. Step 6: Final answer
    x = 15,991.19

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Half scale
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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.