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Finding the Fourth Proportional to 9,220.96, 13,819.08 and 8,630.47

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Solution

The fourth proportional to 9,220.96, 13,819.08 and 8,630.47 is: 12,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.96 : 13,819.08 = 8,630.47 : x
  2. Step 2: Convert to fraction form
    9,220.96/13,819.08 = 8,630.47/x
  3. Step 3: Cross multiply
    9,220.96x = 13,819.08 × 8,630.47
  4. Step 4: Simplify right side
    9,220.96x = 119,265,086.27
  5. Step 5: Solve for x
    x = 119,265,086.27/9,220.96
  6. Step 6: Final answer
    x = 12,934.14

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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.