Home / 11,012.30-15,180.19-8,650.34

Finding the Fourth Proportional to 11,012.30, 15,180.19 and 8,650.34

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Solution

The fourth proportional to 11,012.30, 15,180.19 and 8,650.34 is: 11,924.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,012.30 : 15,180.19 = 8,650.34 : x
  2. Step 2: Convert to fraction form
    11,012.30/15,180.19 = 8,650.34/x
  3. Step 3: Cross multiply
    11,012.30x = 15,180.19 × 8,650.34
  4. Step 4: Simplify right side
    11,012.30x = 131,313,685.61
  5. Step 5: Solve for x
    x = 131,313,685.61/11,012.30
  6. Step 6: Final answer
    x = 11,924.28

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Half scale
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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.