Home / 10,574.13-15,861.35-3,998.55

Finding the Fourth Proportional to 10,574.13, 15,861.35 and 3,998.55

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Solution

The fourth proportional to 10,574.13, 15,861.35 and 3,998.55 is: 5,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,574.13 : 15,861.35 = 3,998.55 : x
  2. Step 2: Convert to fraction form
    10,574.13/15,861.35 = 3,998.55/x
  3. Step 3: Cross multiply
    10,574.13x = 15,861.35 × 3,998.55
  4. Step 4: Simplify right side
    10,574.13x = 63,422,381.05
  5. Step 5: Solve for x
    x = 63,422,381.05/10,574.13
  6. Step 6: Final answer
    x = 5,997.88

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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.