Home / 8,213.28-11,318.52-5,972.88

Finding the Fourth Proportional to 8,213.28, 11,318.52 and 5,972.88

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Solution

The fourth proportional to 8,213.28, 11,318.52 and 5,972.88 is: 8,231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.28 : 11,318.52 = 5,972.88 : x
  2. Step 2: Convert to fraction form
    8,213.28/11,318.52 = 5,972.88/x
  3. Step 3: Cross multiply
    8,213.28x = 11,318.52 × 5,972.88
  4. Step 4: Simplify right side
    8,213.28x = 67,604,161.74
  5. Step 5: Solve for x
    x = 67,604,161.74/8,213.28
  6. Step 6: Final answer
    x = 8,231.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.