Home / 11,106.68-15,331.16-9,794.48

Finding the Fourth Proportional to 11,106.68, 15,331.16 and 9,794.48

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Solution

The fourth proportional to 11,106.68, 15,331.16 and 9,794.48 is: 13,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.68 : 15,331.16 = 9,794.48 : x
  2. Step 2: Convert to fraction form
    11,106.68/15,331.16 = 9,794.48/x
  3. Step 3: Cross multiply
    11,106.68x = 15,331.16 × 9,794.48
  4. Step 4: Simplify right side
    11,106.68x = 150,160,691.02
  5. Step 5: Solve for x
    x = 150,160,691.02/11,106.68
  6. Step 6: Final answer
    x = 13,519.85

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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.