Home / 18,344.32-25,315.14-9,960.76

Finding the Fourth Proportional to 18,344.32, 25,315.14 and 9,960.76

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Solution

The fourth proportional to 18,344.32, 25,315.14 and 9,960.76 is: 13,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.32 : 25,315.14 = 9,960.76 : x
  2. Step 2: Convert to fraction form
    18,344.32/25,315.14 = 9,960.76/x
  3. Step 3: Cross multiply
    18,344.32x = 25,315.14 × 9,960.76
  4. Step 4: Simplify right side
    18,344.32x = 252,158,033.91
  5. Step 5: Solve for x
    x = 252,158,033.91/18,344.32
  6. Step 6: Final answer
    x = 13,745.84

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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.