Home / 11,174.80-15,418.92-6,697.36

Finding the Fourth Proportional to 11,174.80, 15,418.92 and 6,697.36

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Solution

The fourth proportional to 11,174.80, 15,418.92 and 6,697.36 is: 9,240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.80 : 15,418.92 = 6,697.36 : x
  2. Step 2: Convert to fraction form
    11,174.80/15,418.92 = 6,697.36/x
  3. Step 3: Cross multiply
    11,174.80x = 15,418.92 × 6,697.36
  4. Step 4: Simplify right side
    11,174.80x = 103,266,058.05
  5. Step 5: Solve for x
    x = 103,266,058.05/11,174.80
  6. Step 6: Final answer
    x = 9,240.98

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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.