Home / 12,839.17-17,717.20-7,249.81

Finding the Fourth Proportional to 12,839.17, 17,717.20 and 7,249.81

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Solution

The fourth proportional to 12,839.17, 17,717.20 and 7,249.81 is: 10,004.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.17 : 17,717.20 = 7,249.81 : x
  2. Step 2: Convert to fraction form
    12,839.17/17,717.20 = 7,249.81/x
  3. Step 3: Cross multiply
    12,839.17x = 17,717.20 × 7,249.81
  4. Step 4: Simplify right side
    12,839.17x = 128,446,333.73
  5. Step 5: Solve for x
    x = 128,446,333.73/12,839.17
  6. Step 6: Final answer
    x = 10,004.26

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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.