Home / 8,349.28-11,511.04-7,182.88

Finding the Fourth Proportional to 8,349.28, 11,511.04 and 7,182.88

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Solution

The fourth proportional to 8,349.28, 11,511.04 and 7,182.88 is: 9,902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.28 : 11,511.04 = 7,182.88 : x
  2. Step 2: Convert to fraction form
    8,349.28/11,511.04 = 7,182.88/x
  3. Step 3: Cross multiply
    8,349.28x = 11,511.04 × 7,182.88
  4. Step 4: Simplify right side
    8,349.28x = 82,682,419.00
  5. Step 5: Solve for x
    x = 82,682,419.00/8,349.28
  6. Step 6: Final answer
    x = 9,902.94

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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.