Home / 12,928.51-17,839.39-7,262.17

Finding the Fourth Proportional to 12,928.51, 17,839.39 and 7,262.17

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Solution

The fourth proportional to 12,928.51, 17,839.39 and 7,262.17 is: 10,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.51 : 17,839.39 = 7,262.17 : x
  2. Step 2: Convert to fraction form
    12,928.51/17,839.39 = 7,262.17/x
  3. Step 3: Cross multiply
    12,928.51x = 17,839.39 × 7,262.17
  4. Step 4: Simplify right side
    12,928.51x = 129,552,593.68
  5. Step 5: Solve for x
    x = 129,552,593.68/12,928.51
  6. Step 6: Final answer
    x = 10,020.69

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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.