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Finding the Fourth Proportional to 8,987.22, 13,480.83 and 8,974.24

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Solution

The fourth proportional to 8,987.22, 13,480.83 and 8,974.24 is: 13,461.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.22 : 13,480.83 = 8,974.24 : x
  2. Step 2: Convert to fraction form
    8,987.22/13,480.83 = 8,974.24/x
  3. Step 3: Cross multiply
    8,987.22x = 13,480.83 × 8,974.24
  4. Step 4: Simplify right side
    8,987.22x = 120,980,170.12
  5. Step 5: Solve for x
    x = 120,980,170.12/8,987.22
  6. Step 6: Final answer
    x = 13,461.36

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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.