Home / 18,961.38-26,159.22-11,885.22

Finding the Fourth Proportional to 18,961.38, 26,159.22 and 11,885.22

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Solution

The fourth proportional to 18,961.38, 26,159.22 and 11,885.22 is: 16,396.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.38 : 26,159.22 = 11,885.22 : x
  2. Step 2: Convert to fraction form
    18,961.38/26,159.22 = 11,885.22/x
  3. Step 3: Cross multiply
    18,961.38x = 26,159.22 × 11,885.22
  4. Step 4: Simplify right side
    18,961.38x = 310,908,084.73
  5. Step 5: Solve for x
    x = 310,908,084.73/18,961.38
  6. Step 6: Final answer
    x = 16,396.91

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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.