Home / 8,781.37-12,116.64-5,951.02

Finding the Fourth Proportional to 8,781.37, 12,116.64 and 5,951.02

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Solution

The fourth proportional to 8,781.37, 12,116.64 and 5,951.02 is: 8,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.37 : 12,116.64 = 5,951.02 : x
  2. Step 2: Convert to fraction form
    8,781.37/12,116.64 = 5,951.02/x
  3. Step 3: Cross multiply
    8,781.37x = 12,116.64 × 5,951.02
  4. Step 4: Simplify right side
    8,781.37x = 72,106,366.97
  5. Step 5: Solve for x
    x = 72,106,366.97/8,781.37
  6. Step 6: Final answer
    x = 8,211.29

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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.