Home / 8,231.28-11,359.04-4,505.28

Finding the Fourth Proportional to 8,231.28, 11,359.04 and 4,505.28

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Solution

The fourth proportional to 8,231.28, 11,359.04 and 4,505.28 is: 6,217.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.28 : 11,359.04 = 4,505.28 : x
  2. Step 2: Convert to fraction form
    8,231.28/11,359.04 = 4,505.28/x
  3. Step 3: Cross multiply
    8,231.28x = 11,359.04 × 4,505.28
  4. Step 4: Simplify right side
    8,231.28x = 51,175,655.73
  5. Step 5: Solve for x
    x = 51,175,655.73/8,231.28
  6. Step 6: Final answer
    x = 6,217.22

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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.