Home / 11,189.72-15,442.20-6,154.32

Finding the Fourth Proportional to 11,189.72, 15,442.20 and 6,154.32

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Solution

The fourth proportional to 11,189.72, 15,442.20 and 6,154.32 is: 8,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.72 : 15,442.20 = 6,154.32 : x
  2. Step 2: Convert to fraction form
    11,189.72/15,442.20 = 6,154.32/x
  3. Step 3: Cross multiply
    11,189.72x = 15,442.20 × 6,154.32
  4. Step 4: Simplify right side
    11,189.72x = 95,036,240.30
  5. Step 5: Solve for x
    x = 95,036,240.30/11,189.72
  6. Step 6: Final answer
    x = 8,493.17

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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.