Home / 17,679.28-24,397.74-9,721.36

Finding the Fourth Proportional to 17,679.28, 24,397.74 and 9,721.36

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Solution

The fourth proportional to 17,679.28, 24,397.74 and 9,721.36 is: 13,415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.28 : 24,397.74 = 9,721.36 : x
  2. Step 2: Convert to fraction form
    17,679.28/24,397.74 = 9,721.36/x
  3. Step 3: Cross multiply
    17,679.28x = 24,397.74 × 9,721.36
  4. Step 4: Simplify right side
    17,679.28x = 237,179,213.73
  5. Step 5: Solve for x
    x = 237,179,213.73/17,679.28
  6. Step 6: Final answer
    x = 13,415.66

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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.