Home / 19,713.28-27,204.64-11,760.16

Finding the Fourth Proportional to 19,713.28, 27,204.64 and 11,760.16

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Solution

The fourth proportional to 19,713.28, 27,204.64 and 11,760.16 is: 16,229.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,713.28 : 27,204.64 = 11,760.16 : x
  2. Step 2: Convert to fraction form
    19,713.28/27,204.64 = 11,760.16/x
  3. Step 3: Cross multiply
    19,713.28x = 27,204.64 × 11,760.16
  4. Step 4: Simplify right side
    19,713.28x = 319,930,919.14
  5. Step 5: Solve for x
    x = 319,930,919.14/19,713.28
  6. Step 6: Final answer
    x = 16,229.21

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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.