Home / 19,884.20-27,434.18-11,499.56

Finding the Fourth Proportional to 19,884.20, 27,434.18 and 11,499.56

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Solution

The fourth proportional to 19,884.20, 27,434.18 and 11,499.56 is: 15,865.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.20 : 27,434.18 = 11,499.56 : x
  2. Step 2: Convert to fraction form
    19,884.20/27,434.18 = 11,499.56/x
  3. Step 3: Cross multiply
    19,884.20x = 27,434.18 × 11,499.56
  4. Step 4: Simplify right side
    19,884.20x = 315,480,998.96
  5. Step 5: Solve for x
    x = 315,480,998.96/19,884.20
  6. Step 6: Final answer
    x = 15,865.91

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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.