Home / 12,640.80-17,444.39-6,975.75

Finding the Fourth Proportional to 12,640.80, 17,444.39 and 6,975.75

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Solution

The fourth proportional to 12,640.80, 17,444.39 and 6,975.75 is: 9,626.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640.80 : 17,444.39 = 6,975.75 : x
  2. Step 2: Convert to fraction form
    12,640.80/17,444.39 = 6,975.75/x
  3. Step 3: Cross multiply
    12,640.80x = 17,444.39 × 6,975.75
  4. Step 4: Simplify right side
    12,640.80x = 121,687,773.32
  5. Step 5: Solve for x
    x = 121,687,773.32/12,640.80
  6. Step 6: Final answer
    x = 9,626.59

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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.