Home / 10,318.40-15,475.60-2,921.04

Finding the Fourth Proportional to 10,318.40, 15,475.60 and 2,921.04

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Solution

The fourth proportional to 10,318.40, 15,475.60 and 2,921.04 is: 4,380.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.40 : 15,475.60 = 2,921.04 : x
  2. Step 2: Convert to fraction form
    10,318.40/15,475.60 = 2,921.04/x
  3. Step 3: Cross multiply
    10,318.40x = 15,475.60 × 2,921.04
  4. Step 4: Simplify right side
    10,318.40x = 45,204,846.62
  5. Step 5: Solve for x
    x = 45,204,846.62/10,318.40
  6. Step 6: Final answer
    x = 4,380.99

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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.