Home / 8,086.64-11,158.65-4,549.78

Finding the Fourth Proportional to 8,086.64, 11,158.65 and 4,549.78

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Solution

The fourth proportional to 8,086.64, 11,158.65 and 4,549.78 is: 6,278.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.64 : 11,158.65 = 4,549.78 : x
  2. Step 2: Convert to fraction form
    8,086.64/11,158.65 = 4,549.78/x
  3. Step 3: Cross multiply
    8,086.64x = 11,158.65 × 4,549.78
  4. Step 4: Simplify right side
    8,086.64x = 50,769,346.80
  5. Step 5: Solve for x
    x = 50,769,346.80/8,086.64
  6. Step 6: Final answer
    x = 6,278.18

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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.