Home / 8,814.30-13,221.45-7,388.70

Finding the Fourth Proportional to 8,814.30, 13,221.45 and 7,388.70

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Solution

The fourth proportional to 8,814.30, 13,221.45 and 7,388.70 is: 11,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.30 : 13,221.45 = 7,388.70 : x
  2. Step 2: Convert to fraction form
    8,814.30/13,221.45 = 7,388.70/x
  3. Step 3: Cross multiply
    8,814.30x = 13,221.45 × 7,388.70
  4. Step 4: Simplify right side
    8,814.30x = 97,689,327.62
  5. Step 5: Solve for x
    x = 97,689,327.62/8,814.30
  6. Step 6: Final answer
    x = 11,083.05

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Similar ratio
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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.