Home / 6,553.20-9,884.10-6,121.20

Finding the Fourth Proportional to 6,553.20, 9,884.10 and 6,121.20

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Solution

The fourth proportional to 6,553.20, 9,884.10 and 6,121.20 is: 9,232.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,553.20 : 9,884.10 = 6,121.20 : x
  2. Step 2: Convert to fraction form
    6,553.20/9,884.10 = 6,121.20/x
  3. Step 3: Cross multiply
    6,553.20x = 9,884.10 × 6,121.20
  4. Step 4: Simplify right side
    6,553.20x = 60,502,552.92
  5. Step 5: Solve for x
    x = 60,502,552.92/6,553.20
  6. Step 6: Final answer
    x = 9,232.52

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Half scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.