Home / 12,639.27-17,442.03-6,974.25

Finding the Fourth Proportional to 12,639.27, 17,442.03 and 6,974.25

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Solution

The fourth proportional to 12,639.27, 17,442.03 and 6,974.25 is: 9,624.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.27 : 17,442.03 = 6,974.25 : x
  2. Step 2: Convert to fraction form
    12,639.27/17,442.03 = 6,974.25/x
  3. Step 3: Cross multiply
    12,639.27x = 17,442.03 × 6,974.25
  4. Step 4: Simplify right side
    12,639.27x = 121,645,077.73
  5. Step 5: Solve for x
    x = 121,645,077.73/12,639.27
  6. Step 6: Final answer
    x = 9,624.38

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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.