Home / 13,765.38-18,995.82-7,797.57

Finding the Fourth Proportional to 13,765.38, 18,995.82 and 7,797.57

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Solution

The fourth proportional to 13,765.38, 18,995.82 and 7,797.57 is: 10,760.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.38 : 18,995.82 = 7,797.57 : x
  2. Step 2: Convert to fraction form
    13,765.38/18,995.82 = 7,797.57/x
  3. Step 3: Cross multiply
    13,765.38x = 18,995.82 × 7,797.57
  4. Step 4: Simplify right side
    13,765.38x = 148,121,236.16
  5. Step 5: Solve for x
    x = 148,121,236.16/13,765.38
  6. Step 6: Final answer
    x = 10,760.42

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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.