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Finding the Fourth Proportional to 8,900.82, 13,326.61 and 6,702.88

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Solution

The fourth proportional to 8,900.82, 13,326.61 and 6,702.88 is: 10,035.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.82 : 13,326.61 = 6,702.88 : x
  2. Step 2: Convert to fraction form
    8,900.82/13,326.61 = 6,702.88/x
  3. Step 3: Cross multiply
    8,900.82x = 13,326.61 × 6,702.88
  4. Step 4: Simplify right side
    8,900.82x = 89,326,667.64
  5. Step 5: Solve for x
    x = 89,326,667.64/8,900.82
  6. Step 6: Final answer
    x = 10,035.78

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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.