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Finding the Fourth Proportional to 8,661, 11,953.35 and 4,884.94

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Solution

The fourth proportional to 8,661, 11,953.35 and 4,884.94 is: 6,741.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661 : 11,953.35 = 4,884.94 : x
  2. Step 2: Convert to fraction form
    8,661/11,953.35 = 4,884.94/x
  3. Step 3: Cross multiply
    8,661x = 11,953.35 × 4,884.94
  4. Step 4: Simplify right side
    8,661x = 58,391,397.55
  5. Step 5: Solve for x
    x = 58,391,397.55/8,661
  6. Step 6: Final answer
    x = 6,741.88

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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.