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Finding the Fourth Proportional to 8,656.84, 11,952.14 and 6,663.88

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Solution

The fourth proportional to 8,656.84, 11,952.14 and 6,663.88 is: 9,200.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.84 : 11,952.14 = 6,663.88 : x
  2. Step 2: Convert to fraction form
    8,656.84/11,952.14 = 6,663.88/x
  3. Step 3: Cross multiply
    8,656.84x = 11,952.14 × 6,663.88
  4. Step 4: Simplify right side
    8,656.84x = 79,647,626.70
  5. Step 5: Solve for x
    x = 79,647,626.70/8,656.84
  6. Step 6: Final answer
    x = 9,200.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.