Home / 11,132.38-15,331.71-8,605.18

Finding the Fourth Proportional to 11,132.38, 15,331.71 and 8,605.18

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Solution

The fourth proportional to 11,132.38, 15,331.71 and 8,605.18 is: 11,851.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,132.38 : 15,331.71 = 8,605.18 : x
  2. Step 2: Convert to fraction form
    11,132.38/15,331.71 = 8,605.18/x
  3. Step 3: Cross multiply
    11,132.38x = 15,331.71 × 8,605.18
  4. Step 4: Simplify right side
    11,132.38x = 131,932,124.26
  5. Step 5: Solve for x
    x = 131,932,124.26/11,132.38
  6. Step 6: Final answer
    x = 11,851.21

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Half scale
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Double scale
Find fourth proportional to 11,133.38, 15,333.09 and 8,606.18
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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.