Home / 17,126.10-25,689.15-11,221.20

Finding the Fourth Proportional to 17,126.10, 25,689.15 and 11,221.20

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Solution

The fourth proportional to 17,126.10, 25,689.15 and 11,221.20 is: 16,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,126.10 : 25,689.15 = 11,221.20 : x
  2. Step 2: Convert to fraction form
    17,126.10/25,689.15 = 11,221.20/x
  3. Step 3: Cross multiply
    17,126.10x = 25,689.15 × 11,221.20
  4. Step 4: Simplify right side
    17,126.10x = 288,263,089.98
  5. Step 5: Solve for x
    x = 288,263,089.98/17,126.10
  6. Step 6: Final answer
    x = 16,831.80

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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.