Home / 11,159.26-15,399.20-6,443.26

Finding the Fourth Proportional to 11,159.26, 15,399.20 and 6,443.26

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Solution

The fourth proportional to 11,159.26, 15,399.20 and 6,443.26 is: 8,891.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.26 : 15,399.20 = 6,443.26 : x
  2. Step 2: Convert to fraction form
    11,159.26/15,399.20 = 6,443.26/x
  3. Step 3: Cross multiply
    11,159.26x = 15,399.20 × 6,443.26
  4. Step 4: Simplify right side
    11,159.26x = 99,221,049.39
  5. Step 5: Solve for x
    x = 99,221,049.39/11,159.26
  6. Step 6: Final answer
    x = 8,891.36

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Half scale
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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.