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Finding the Fourth Proportional to 8,713.86, 13,070.79 and 3,166.17

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Solution

The fourth proportional to 8,713.86, 13,070.79 and 3,166.17 is: 4,749.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.86 : 13,070.79 = 3,166.17 : x
  2. Step 2: Convert to fraction form
    8,713.86/13,070.79 = 3,166.17/x
  3. Step 3: Cross multiply
    8,713.86x = 13,070.79 × 3,166.17
  4. Step 4: Simplify right side
    8,713.86x = 41,384,343.17
  5. Step 5: Solve for x
    x = 41,384,343.17/8,713.86
  6. Step 6: Final answer
    x = 4,749.26

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Similar ratio
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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.