Home / 11,015.16-15,207.28-8,357.92

Finding the Fourth Proportional to 11,015.16, 15,207.28 and 8,357.92

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Solution

The fourth proportional to 11,015.16, 15,207.28 and 8,357.92 is: 11,538.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.16 : 15,207.28 = 8,357.92 : x
  2. Step 2: Convert to fraction form
    11,015.16/15,207.28 = 8,357.92/x
  3. Step 3: Cross multiply
    11,015.16x = 15,207.28 × 8,357.92
  4. Step 4: Simplify right side
    11,015.16x = 127,101,229.66
  5. Step 5: Solve for x
    x = 127,101,229.66/11,015.16
  6. Step 6: Final answer
    x = 11,538.75

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Double scale
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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.