Home / 10,318.88-15,480.56-3,393.12

Finding the Fourth Proportional to 10,318.88, 15,480.56 and 3,393.12

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Solution

The fourth proportional to 10,318.88, 15,480.56 and 3,393.12 is: 5,090.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.88 : 15,480.56 = 3,393.12 : x
  2. Step 2: Convert to fraction form
    10,318.88/15,480.56 = 3,393.12/x
  3. Step 3: Cross multiply
    10,318.88x = 15,480.56 × 3,393.12
  4. Step 4: Simplify right side
    10,318.88x = 52,527,397.75
  5. Step 5: Solve for x
    x = 52,527,397.75/10,318.88
  6. Step 6: Final answer
    x = 5,090.42

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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.