Home / 8,671.32-11,960.89-5,687.35

Finding the Fourth Proportional to 8,671.32, 11,960.89 and 5,687.35

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Solution

The fourth proportional to 8,671.32, 11,960.89 and 5,687.35 is: 7,844.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.32 : 11,960.89 = 5,687.35 : x
  2. Step 2: Convert to fraction form
    8,671.32/11,960.89 = 5,687.35/x
  3. Step 3: Cross multiply
    8,671.32x = 11,960.89 × 5,687.35
  4. Step 4: Simplify right side
    8,671.32x = 68,025,723.62
  5. Step 5: Solve for x
    x = 68,025,723.62/8,671.32
  6. Step 6: Final answer
    x = 7,844.91

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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.