Home / 8,671.38-11,967.54-5,687.34

Finding the Fourth Proportional to 8,671.38, 11,967.54 and 5,687.34

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Solution

The fourth proportional to 8,671.38, 11,967.54 and 5,687.34 is: 7,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.38 : 11,967.54 = 5,687.34 : x
  2. Step 2: Convert to fraction form
    8,671.38/11,967.54 = 5,687.34/x
  3. Step 3: Cross multiply
    8,671.38x = 11,967.54 × 5,687.34
  4. Step 4: Simplify right side
    8,671.38x = 68,063,468.94
  5. Step 5: Solve for x
    x = 68,063,468.94/8,671.38
  6. Step 6: Final answer
    x = 7,849.21

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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.