Home / 19,874.68-27,425.46-11,491.72

Finding the Fourth Proportional to 19,874.68, 27,425.46 and 11,491.72

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Solution

The fourth proportional to 19,874.68, 27,425.46 and 11,491.72 is: 15,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.68 : 27,425.46 = 11,491.72 : x
  2. Step 2: Convert to fraction form
    19,874.68/27,425.46 = 11,491.72/x
  3. Step 3: Cross multiply
    19,874.68x = 27,425.46 × 11,491.72
  4. Step 4: Simplify right side
    19,874.68x = 315,165,707.19
  5. Step 5: Solve for x
    x = 315,165,707.19/19,874.68
  6. Step 6: Final answer
    x = 15,857.65

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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.