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Finding the Fourth Proportional to 8,718.59, 13,081.13 and 4,040.84

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Solution

The fourth proportional to 8,718.59, 13,081.13 and 4,040.84 is: 6,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.59 : 13,081.13 = 4,040.84 : x
  2. Step 2: Convert to fraction form
    8,718.59/13,081.13 = 4,040.84/x
  3. Step 3: Cross multiply
    8,718.59x = 13,081.13 × 4,040.84
  4. Step 4: Simplify right side
    8,718.59x = 52,858,667.74
  5. Step 5: Solve for x
    x = 52,858,667.74/8,718.59
  6. Step 6: Final answer
    x = 6,062.76

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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.