Home / 6,865.94-10,287.15-3,748.13

Finding the Fourth Proportional to 6,865.94, 10,287.15 and 3,748.13

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Solution

The fourth proportional to 6,865.94, 10,287.15 and 3,748.13 is: 5,615.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,865.94 : 10,287.15 = 3,748.13 : x
  2. Step 2: Convert to fraction form
    6,865.94/10,287.15 = 3,748.13/x
  3. Step 3: Cross multiply
    6,865.94x = 10,287.15 × 3,748.13
  4. Step 4: Simplify right side
    6,865.94x = 38,557,601.25
  5. Step 5: Solve for x
    x = 38,557,601.25/6,865.94
  6. Step 6: Final answer
    x = 5,615.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.