Home / 19,691.39-27,174.33-10,738.86

Finding the Fourth Proportional to 19,691.39, 27,174.33 and 10,738.86

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Solution

The fourth proportional to 19,691.39, 27,174.33 and 10,738.86 is: 14,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.39 : 27,174.33 = 10,738.86 : x
  2. Step 2: Convert to fraction form
    19,691.39/27,174.33 = 10,738.86/x
  3. Step 3: Cross multiply
    19,691.39x = 27,174.33 × 10,738.86
  4. Step 4: Simplify right side
    19,691.39x = 291,821,325.46
  5. Step 5: Solve for x
    x = 291,821,325.46/19,691.39
  6. Step 6: Final answer
    x = 14,819.75

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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.