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Finding the Fourth Proportional to 8,853.68, 12,218.05 and 4,874.87

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Solution

The fourth proportional to 8,853.68, 12,218.05 and 4,874.87 is: 6,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.68 : 12,218.05 = 4,874.87 : x
  2. Step 2: Convert to fraction form
    8,853.68/12,218.05 = 4,874.87/x
  3. Step 3: Cross multiply
    8,853.68x = 12,218.05 × 4,874.87
  4. Step 4: Simplify right side
    8,853.68x = 59,561,405.40
  5. Step 5: Solve for x
    x = 59,561,405.40/8,853.68
  6. Step 6: Final answer
    x = 6,727.30

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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.