Home / 12,428.24-17,150.97-6,839.24

Finding the Fourth Proportional to 12,428.24, 17,150.97 and 6,839.24

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Solution

The fourth proportional to 12,428.24, 17,150.97 and 6,839.24 is: 9,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428.24 : 17,150.97 = 6,839.24 : x
  2. Step 2: Convert to fraction form
    12,428.24/17,150.97 = 6,839.24/x
  3. Step 3: Cross multiply
    12,428.24x = 17,150.97 × 6,839.24
  4. Step 4: Simplify right side
    12,428.24x = 117,299,480.11
  5. Step 5: Solve for x
    x = 117,299,480.11/12,428.24
  6. Step 6: Final answer
    x = 9,438.14

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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.