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Finding the Fourth Proportional to 8,770.02, 13,042.35 and 8,493.21

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Solution

The fourth proportional to 8,770.02, 13,042.35 and 8,493.21 is: 12,630.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.02 : 13,042.35 = 8,493.21 : x
  2. Step 2: Convert to fraction form
    8,770.02/13,042.35 = 8,493.21/x
  3. Step 3: Cross multiply
    8,770.02x = 13,042.35 × 8,493.21
  4. Step 4: Simplify right side
    8,770.02x = 110,771,417.44
  5. Step 5: Solve for x
    x = 110,771,417.44/8,770.02
  6. Step 6: Final answer
    x = 12,630.69

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.