Home / 20,126.83-27,772.06-11,174.41

Finding the Fourth Proportional to 20,126.83, 27,772.06 and 11,174.41

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Solution

The fourth proportional to 20,126.83, 27,772.06 and 11,174.41 is: 15,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.83 : 27,772.06 = 11,174.41 : x
  2. Step 2: Convert to fraction form
    20,126.83/27,772.06 = 11,174.41/x
  3. Step 3: Cross multiply
    20,126.83x = 27,772.06 × 11,174.41
  4. Step 4: Simplify right side
    20,126.83x = 310,336,384.98
  5. Step 5: Solve for x
    x = 310,336,384.98/20,126.83
  6. Step 6: Final answer
    x = 15,419.04

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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.