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Finding the Fourth Proportional to 7,671.50, 10,591.92 and 5,875.80

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Solution

The fourth proportional to 7,671.50, 10,591.92 and 5,875.80 is: 8,112.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.50 : 10,591.92 = 5,875.80 : x
  2. Step 2: Convert to fraction form
    7,671.50/10,591.92 = 5,875.80/x
  3. Step 3: Cross multiply
    7,671.50x = 10,591.92 × 5,875.80
  4. Step 4: Simplify right side
    7,671.50x = 62,236,003.54
  5. Step 5: Solve for x
    x = 62,236,003.54/7,671.50
  6. Step 6: Final answer
    x = 8,112.63

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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.