Home / 13,079.88-19,625.76-11,972.48

Finding the Fourth Proportional to 13,079.88, 19,625.76 and 11,972.48

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Solution

The fourth proportional to 13,079.88, 19,625.76 and 11,972.48 is: 17,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.88 : 19,625.76 = 11,972.48 : x
  2. Step 2: Convert to fraction form
    13,079.88/19,625.76 = 11,972.48/x
  3. Step 3: Cross multiply
    13,079.88x = 19,625.76 × 11,972.48
  4. Step 4: Simplify right side
    13,079.88x = 234,968,920.96
  5. Step 5: Solve for x
    x = 234,968,920.96/13,079.88
  6. Step 6: Final answer
    x = 17,964.15

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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.