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Finding the Fourth Proportional to 8,876.22, 13,319.73 and 8,802.78

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Solution

The fourth proportional to 8,876.22, 13,319.73 and 8,802.78 is: 13,209.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.22 : 13,319.73 = 8,802.78 : x
  2. Step 2: Convert to fraction form
    8,876.22/13,319.73 = 8,802.78/x
  3. Step 3: Cross multiply
    8,876.22x = 13,319.73 × 8,802.78
  4. Step 4: Simplify right side
    8,876.22x = 117,250,652.85
  5. Step 5: Solve for x
    x = 117,250,652.85/8,876.22
  6. Step 6: Final answer
    x = 13,209.53

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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.