Home / 10,318.56-15,475.50-2,921.02

Finding the Fourth Proportional to 10,318.56, 15,475.50 and 2,921.02

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Solution

The fourth proportional to 10,318.56, 15,475.50 and 2,921.02 is: 4,380.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.56 : 15,475.50 = 2,921.02 : x
  2. Step 2: Convert to fraction form
    10,318.56/15,475.50 = 2,921.02/x
  3. Step 3: Cross multiply
    10,318.56x = 15,475.50 × 2,921.02
  4. Step 4: Simplify right side
    10,318.56x = 45,204,245.01
  5. Step 5: Solve for x
    x = 45,204,245.01/10,318.56
  6. Step 6: Final answer
    x = 4,380.87

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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.