Home / 12,427-17,149.26-6,838.36

Finding the Fourth Proportional to 12,427, 17,149.26 and 6,838.36

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Solution

The fourth proportional to 12,427, 17,149.26 and 6,838.36 is: 9,436.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427 : 17,149.26 = 6,838.36 : x
  2. Step 2: Convert to fraction form
    12,427/17,149.26 = 6,838.36/x
  3. Step 3: Cross multiply
    12,427x = 17,149.26 × 6,838.36
  4. Step 4: Simplify right side
    12,427x = 117,272,813.61
  5. Step 5: Solve for x
    x = 117,272,813.61/12,427
  6. Step 6: Final answer
    x = 9,436.94

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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.