Home / 18,344.31-25,315.25-9,960.81

Finding the Fourth Proportional to 18,344.31, 25,315.25 and 9,960.81

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Solution

The fourth proportional to 18,344.31, 25,315.25 and 9,960.81 is: 13,745.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.31 : 25,315.25 = 9,960.81 : x
  2. Step 2: Convert to fraction form
    18,344.31/25,315.25 = 9,960.81/x
  3. Step 3: Cross multiply
    18,344.31x = 25,315.25 × 9,960.81
  4. Step 4: Simplify right side
    18,344.31x = 252,160,395.35
  5. Step 5: Solve for x
    x = 252,160,395.35/18,344.31
  6. Step 6: Final answer
    x = 13,745.97

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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.