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Finding the Fourth Proportional to 8,821.98, 13,232.97 and 3,624.21

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Solution

The fourth proportional to 8,821.98, 13,232.97 and 3,624.21 is: 5,436.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.98 : 13,232.97 = 3,624.21 : x
  2. Step 2: Convert to fraction form
    8,821.98/13,232.97 = 3,624.21/x
  3. Step 3: Cross multiply
    8,821.98x = 13,232.97 × 3,624.21
  4. Step 4: Simplify right side
    8,821.98x = 47,959,062.20
  5. Step 5: Solve for x
    x = 47,959,062.20/8,821.98
  6. Step 6: Final answer
    x = 5,436.32

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.