Home / 12,999.33-17,939.01-7,031

Finding the Fourth Proportional to 12,999.33, 17,939.01 and 7,031

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Solution

The fourth proportional to 12,999.33, 17,939.01 and 7,031 is: 9,702.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999.33 : 17,939.01 = 7,031 : x
  2. Step 2: Convert to fraction form
    12,999.33/17,939.01 = 7,031/x
  3. Step 3: Cross multiply
    12,999.33x = 17,939.01 × 7,031
  4. Step 4: Simplify right side
    12,999.33x = 126,129,179.31
  5. Step 5: Solve for x
    x = 126,129,179.31/12,999.33
  6. Step 6: Final answer
    x = 9,702.74

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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.