Home / 15,009.40-22,514.10-11,121.40

Finding the Fourth Proportional to 15,009.40, 22,514.10 and 11,121.40

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Solution

The fourth proportional to 15,009.40, 22,514.10 and 11,121.40 is: 16,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.40 : 22,514.10 = 11,121.40 : x
  2. Step 2: Convert to fraction form
    15,009.40/22,514.10 = 11,121.40/x
  3. Step 3: Cross multiply
    15,009.40x = 22,514.10 × 11,121.40
  4. Step 4: Simplify right side
    15,009.40x = 250,388,311.74
  5. Step 5: Solve for x
    x = 250,388,311.74/15,009.40
  6. Step 6: Final answer
    x = 16,682.10

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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.