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Finding the Fourth Proportional to 8,800.64, 13,138.17 and 8,493.08

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Solution

The fourth proportional to 8,800.64, 13,138.17 and 8,493.08 is: 12,679.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,800.64 : 13,138.17 = 8,493.08 : x
  2. Step 2: Convert to fraction form
    8,800.64/13,138.17 = 8,493.08/x
  3. Step 3: Cross multiply
    8,800.64x = 13,138.17 × 8,493.08
  4. Step 4: Simplify right side
    8,800.64x = 111,583,528.86
  5. Step 5: Solve for x
    x = 111,583,528.86/8,800.64
  6. Step 6: Final answer
    x = 12,679.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.