Home / 8,334.90-11,521.85-6,672.78

Finding the Fourth Proportional to 8,334.90, 11,521.85 and 6,672.78

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Solution

The fourth proportional to 8,334.90, 11,521.85 and 6,672.78 is: 9,224.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,334.90 : 11,521.85 = 6,672.78 : x
  2. Step 2: Convert to fraction form
    8,334.90/11,521.85 = 6,672.78/x
  3. Step 3: Cross multiply
    8,334.90x = 11,521.85 × 6,672.78
  4. Step 4: Simplify right side
    8,334.90x = 76,882,736.88
  5. Step 5: Solve for x
    x = 76,882,736.88/8,334.90
  6. Step 6: Final answer
    x = 9,224.19

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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.