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Finding the Fourth Proportional to 7,887.50, 10,884.70 and 4,350.71

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Solution

The fourth proportional to 7,887.50, 10,884.70 and 4,350.71 is: 6,003.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.50 : 10,884.70 = 4,350.71 : x
  2. Step 2: Convert to fraction form
    7,887.50/10,884.70 = 4,350.71/x
  3. Step 3: Cross multiply
    7,887.50x = 10,884.70 × 4,350.71
  4. Step 4: Simplify right side
    7,887.50x = 47,356,205.79
  5. Step 5: Solve for x
    x = 47,356,205.79/7,887.50
  6. Step 6: Final answer
    x = 6,003.96

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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.