Home / 18,917.76-26,107.68-10,961.04

Finding the Fourth Proportional to 18,917.76, 26,107.68 and 10,961.04

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Solution

The fourth proportional to 18,917.76, 26,107.68 and 10,961.04 is: 15,126.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917.76 : 26,107.68 = 10,961.04 : x
  2. Step 2: Convert to fraction form
    18,917.76/26,107.68 = 10,961.04/x
  3. Step 3: Cross multiply
    18,917.76x = 26,107.68 × 10,961.04
  4. Step 4: Simplify right side
    18,917.76x = 286,167,324.79
  5. Step 5: Solve for x
    x = 286,167,324.79/18,917.76
  6. Step 6: Final answer
    x = 15,126.91

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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.