Home / 12,427.31-17,149.70-6,838.31

Finding the Fourth Proportional to 12,427.31, 17,149.70 and 6,838.31

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Solution

The fourth proportional to 12,427.31, 17,149.70 and 6,838.31 is: 9,436.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.31 : 17,149.70 = 6,838.31 : x
  2. Step 2: Convert to fraction form
    12,427.31/17,149.70 = 6,838.31/x
  3. Step 3: Cross multiply
    12,427.31x = 17,149.70 × 6,838.31
  4. Step 4: Simplify right side
    12,427.31x = 117,275,024.98
  5. Step 5: Solve for x
    x = 117,275,024.98/12,427.31
  6. Step 6: Final answer
    x = 9,436.88

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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.