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Finding the Fourth Proportional to 8,842.77, 13,279.34 and 8,108.61

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Solution

The fourth proportional to 8,842.77, 13,279.34 and 8,108.61 is: 12,176.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,842.77 : 13,279.34 = 8,108.61 : x
  2. Step 2: Convert to fraction form
    8,842.77/13,279.34 = 8,108.61/x
  3. Step 3: Cross multiply
    8,842.77x = 13,279.34 × 8,108.61
  4. Step 4: Simplify right side
    8,842.77x = 107,676,959.59
  5. Step 5: Solve for x
    x = 107,676,959.59/8,842.77
  6. Step 6: Final answer
    x = 12,176.84

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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.