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Finding the Fourth Proportional to 8,769.92, 13,042.10 and 8,493.05

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Solution

The fourth proportional to 8,769.92, 13,042.10 and 8,493.05 is: 12,630.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.92 : 13,042.10 = 8,493.05 : x
  2. Step 2: Convert to fraction form
    8,769.92/13,042.10 = 8,493.05/x
  3. Step 3: Cross multiply
    8,769.92x = 13,042.10 × 8,493.05
  4. Step 4: Simplify right side
    8,769.92x = 110,767,142.19
  5. Step 5: Solve for x
    x = 110,767,142.19/8,769.92
  6. Step 6: Final answer
    x = 12,630.36

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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.