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Finding the Fourth Proportional to 8,818.92, 12,169.70 and 4,839.95

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Solution

The fourth proportional to 8,818.92, 12,169.70 and 4,839.95 is: 6,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.92 : 12,169.70 = 4,839.95 : x
  2. Step 2: Convert to fraction form
    8,818.92/12,169.70 = 4,839.95/x
  3. Step 3: Cross multiply
    8,818.92x = 12,169.70 × 4,839.95
  4. Step 4: Simplify right side
    8,818.92x = 58,900,739.52
  5. Step 5: Solve for x
    x = 58,900,739.52/8,818.92
  6. Step 6: Final answer
    x = 6,678.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.