Home / 12,738.39-17,579.52-7,073.13

Finding the Fourth Proportional to 12,738.39, 17,579.52 and 7,073.13

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Solution

The fourth proportional to 12,738.39, 17,579.52 and 7,073.13 is: 9,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.39 : 17,579.52 = 7,073.13 : x
  2. Step 2: Convert to fraction form
    12,738.39/17,579.52 = 7,073.13/x
  3. Step 3: Cross multiply
    12,738.39x = 17,579.52 × 7,073.13
  4. Step 4: Simplify right side
    12,738.39x = 124,342,230.30
  5. Step 5: Solve for x
    x = 124,342,230.30/12,738.39
  6. Step 6: Final answer
    x = 9,761.22

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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.