Home / 19,659.38-29,480.79-7,964.42

Finding the Fourth Proportional to 19,659.38, 29,480.79 and 7,964.42

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Solution

The fourth proportional to 19,659.38, 29,480.79 and 7,964.42 is: 11,943.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.38 : 29,480.79 = 7,964.42 : x
  2. Step 2: Convert to fraction form
    19,659.38/29,480.79 = 7,964.42/x
  3. Step 3: Cross multiply
    19,659.38x = 29,480.79 × 7,964.42
  4. Step 4: Simplify right side
    19,659.38x = 234,797,393.49
  5. Step 5: Solve for x
    x = 234,797,393.49/19,659.38
  6. Step 6: Final answer
    x = 11,943.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.