Home / 15,540.90-23,311.35-11,166.90

Finding the Fourth Proportional to 15,540.90, 23,311.35 and 11,166.90

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Solution

The fourth proportional to 15,540.90, 23,311.35 and 11,166.90 is: 16,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.90 : 23,311.35 = 11,166.90 : x
  2. Step 2: Convert to fraction form
    15,540.90/23,311.35 = 11,166.90/x
  3. Step 3: Cross multiply
    15,540.90x = 23,311.35 × 11,166.90
  4. Step 4: Simplify right side
    15,540.90x = 260,315,514.32
  5. Step 5: Solve for x
    x = 260,315,514.32/15,540.90
  6. Step 6: Final answer
    x = 16,750.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.