Home / 11,122.92-15,350.10-6,407.88

Finding the Fourth Proportional to 11,122.92, 15,350.10 and 6,407.88

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Solution

The fourth proportional to 11,122.92, 15,350.10 and 6,407.88 is: 8,843.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.92 : 15,350.10 = 6,407.88 : x
  2. Step 2: Convert to fraction form
    11,122.92/15,350.10 = 6,407.88/x
  3. Step 3: Cross multiply
    11,122.92x = 15,350.10 × 6,407.88
  4. Step 4: Simplify right side
    11,122.92x = 98,361,598.79
  5. Step 5: Solve for x
    x = 98,361,598.79/11,122.92
  6. Step 6: Final answer
    x = 8,843.15

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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.