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Finding the Fourth Proportional to 8,681.95, 13,019.03 and 2,757.16

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Solution

The fourth proportional to 8,681.95, 13,019.03 and 2,757.16 is: 4,134.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.95 : 13,019.03 = 2,757.16 : x
  2. Step 2: Convert to fraction form
    8,681.95/13,019.03 = 2,757.16/x
  3. Step 3: Cross multiply
    8,681.95x = 13,019.03 × 2,757.16
  4. Step 4: Simplify right side
    8,681.95x = 35,895,534.97
  5. Step 5: Solve for x
    x = 35,895,534.97/8,681.95
  6. Step 6: Final answer
    x = 4,134.50

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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.