Home / 9,380.24-12,954.41-8,115.21

Finding the Fourth Proportional to 9,380.24, 12,954.41 and 8,115.21

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Solution

The fourth proportional to 9,380.24, 12,954.41 and 8,115.21 is: 11,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,380.24 : 12,954.41 = 8,115.21 : x
  2. Step 2: Convert to fraction form
    9,380.24/12,954.41 = 8,115.21/x
  3. Step 3: Cross multiply
    9,380.24x = 12,954.41 × 8,115.21
  4. Step 4: Simplify right side
    9,380.24x = 105,127,757.58
  5. Step 5: Solve for x
    x = 105,127,757.58/9,380.24
  6. Step 6: Final answer
    x = 11,207.36

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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.