Home / 11,749.28-16,198.31-9,334.65

Finding the Fourth Proportional to 11,749.28, 16,198.31 and 9,334.65

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Solution

The fourth proportional to 11,749.28, 16,198.31 and 9,334.65 is: 12,869.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.28 : 16,198.31 = 9,334.65 : x
  2. Step 2: Convert to fraction form
    11,749.28/16,198.31 = 9,334.65/x
  3. Step 3: Cross multiply
    11,749.28x = 16,198.31 × 9,334.65
  4. Step 4: Simplify right side
    11,749.28x = 151,205,507.77
  5. Step 5: Solve for x
    x = 151,205,507.77/11,749.28
  6. Step 6: Final answer
    x = 12,869.34

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Double scale
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Similar ratio
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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.