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Finding the Fourth Proportional to 8,667, 12,952.80 and 6,331.86

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Solution

The fourth proportional to 8,667, 12,952.80 and 6,331.86 is: 9,462.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667 : 12,952.80 = 6,331.86 : x
  2. Step 2: Convert to fraction form
    8,667/12,952.80 = 6,331.86/x
  3. Step 3: Cross multiply
    8,667x = 12,952.80 × 6,331.86
  4. Step 4: Simplify right side
    8,667x = 82,015,316.21
  5. Step 5: Solve for x
    x = 82,015,316.21/8,667
  6. Step 6: Final answer
    x = 9,462.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.