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Finding the Fourth Proportional to 7,881.68, 10,876.50 and 4,344.89

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Solution

The fourth proportional to 7,881.68, 10,876.50 and 4,344.89 is: 5,995.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.68 : 10,876.50 = 4,344.89 : x
  2. Step 2: Convert to fraction form
    7,881.68/10,876.50 = 4,344.89/x
  3. Step 3: Cross multiply
    7,881.68x = 10,876.50 × 4,344.89
  4. Step 4: Simplify right side
    7,881.68x = 47,257,196.09
  5. Step 5: Solve for x
    x = 47,257,196.09/7,881.68
  6. Step 6: Final answer
    x = 5,995.83

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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.