Home / 8,761.49-12,088.80-4,983.78

Finding the Fourth Proportional to 8,761.49, 12,088.80 and 4,983.78

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Solution

The fourth proportional to 8,761.49, 12,088.80 and 4,983.78 is: 6,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.49 : 12,088.80 = 4,983.78 : x
  2. Step 2: Convert to fraction form
    8,761.49/12,088.80 = 4,983.78/x
  3. Step 3: Cross multiply
    8,761.49x = 12,088.80 × 4,983.78
  4. Step 4: Simplify right side
    8,761.49x = 60,247,919.66
  5. Step 5: Solve for x
    x = 60,247,919.66/8,761.49
  6. Step 6: Final answer
    x = 6,876.45

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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.