Home / 8,613.20-11,886.12-4,886.96

Finding the Fourth Proportional to 8,613.20, 11,886.12 and 4,886.96

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Solution

The fourth proportional to 8,613.20, 11,886.12 and 4,886.96 is: 6,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.20 : 11,886.12 = 4,886.96 : x
  2. Step 2: Convert to fraction form
    8,613.20/11,886.12 = 4,886.96/x
  3. Step 3: Cross multiply
    8,613.20x = 11,886.12 × 4,886.96
  4. Step 4: Simplify right side
    8,613.20x = 58,086,993.00
  5. Step 5: Solve for x
    x = 58,086,993.00/8,613.20
  6. Step 6: Final answer
    x = 6,743.95

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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.