Home / 7,067.80-9,761.75-6,122.13

Finding the Fourth Proportional to 7,067.80, 9,761.75 and 6,122.13

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Solution

The fourth proportional to 7,067.80, 9,761.75 and 6,122.13 is: 8,455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.80 : 9,761.75 = 6,122.13 : x
  2. Step 2: Convert to fraction form
    7,067.80/9,761.75 = 6,122.13/x
  3. Step 3: Cross multiply
    7,067.80x = 9,761.75 × 6,122.13
  4. Step 4: Simplify right side
    7,067.80x = 59,762,702.53
  5. Step 5: Solve for x
    x = 59,762,702.53/7,067.80
  6. Step 6: Final answer
    x = 8,455.63

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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.