Home / 11,291.26-15,581.55-6,186.75

Finding the Fourth Proportional to 11,291.26, 15,581.55 and 6,186.75

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Solution

The fourth proportional to 11,291.26, 15,581.55 and 6,186.75 is: 8,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.26 : 15,581.55 = 6,186.75 : x
  2. Step 2: Convert to fraction form
    11,291.26/15,581.55 = 6,186.75/x
  3. Step 3: Cross multiply
    11,291.26x = 15,581.55 × 6,186.75
  4. Step 4: Simplify right side
    11,291.26x = 96,399,154.46
  5. Step 5: Solve for x
    x = 96,399,154.46/11,291.26
  6. Step 6: Final answer
    x = 8,537.50

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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.