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Finding the Fourth Proportional to 8,447.82, 12,667.19 and 5,987.45

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Solution

The fourth proportional to 8,447.82, 12,667.19 and 5,987.45 is: 8,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.82 : 12,667.19 = 5,987.45 : x
  2. Step 2: Convert to fraction form
    8,447.82/12,667.19 = 5,987.45/x
  3. Step 3: Cross multiply
    8,447.82x = 12,667.19 × 5,987.45
  4. Step 4: Simplify right side
    8,447.82x = 75,844,073.49
  5. Step 5: Solve for x
    x = 75,844,073.49/8,447.82
  6. Step 6: Final answer
    x = 8,977.95

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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.