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Finding the Fourth Proportional to 8,447.35, 12,671.02 and 2,291.35

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Solution

The fourth proportional to 8,447.35, 12,671.02 and 2,291.35 is: 3,437.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.35 : 12,671.02 = 2,291.35 : x
  2. Step 2: Convert to fraction form
    8,447.35/12,671.02 = 2,291.35/x
  3. Step 3: Cross multiply
    8,447.35x = 12,671.02 × 2,291.35
  4. Step 4: Simplify right side
    8,447.35x = 29,033,704.27
  5. Step 5: Solve for x
    x = 29,033,704.27/8,447.35
  6. Step 6: Final answer
    x = 3,437.02

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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.