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Finding the Fourth Proportional to 8,878.16, 13,317.26 and 8,336.88

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Solution

The fourth proportional to 8,878.16, 13,317.26 and 8,336.88 is: 12,505.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.16 : 13,317.26 = 8,336.88 : x
  2. Step 2: Convert to fraction form
    8,878.16/13,317.26 = 8,336.88/x
  3. Step 3: Cross multiply
    8,878.16x = 13,317.26 × 8,336.88
  4. Step 4: Simplify right side
    8,878.16x = 111,024,356.86
  5. Step 5: Solve for x
    x = 111,024,356.86/8,878.16
  6. Step 6: Final answer
    x = 12,505.33

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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.