Home / 7,402.20-11,103.18-7,216.32

Finding the Fourth Proportional to 7,402.20, 11,103.18 and 7,216.32

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Solution

The fourth proportional to 7,402.20, 11,103.18 and 7,216.32 is: 10,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.20 : 11,103.18 = 7,216.32 : x
  2. Step 2: Convert to fraction form
    7,402.20/11,103.18 = 7,216.32/x
  3. Step 3: Cross multiply
    7,402.20x = 11,103.18 × 7,216.32
  4. Step 4: Simplify right side
    7,402.20x = 80,124,099.90
  5. Step 5: Solve for x
    x = 80,124,099.90/7,402.20
  6. Step 6: Final answer
    x = 10,824.36

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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.