Home / 18,340.24-25,305.32-10,380.72

Finding the Fourth Proportional to 18,340.24, 25,305.32 and 10,380.72

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Solution

The fourth proportional to 18,340.24, 25,305.32 and 10,380.72 is: 14,323.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.24 : 25,305.32 = 10,380.72 : x
  2. Step 2: Convert to fraction form
    18,340.24/25,305.32 = 10,380.72/x
  3. Step 3: Cross multiply
    18,340.24x = 25,305.32 × 10,380.72
  4. Step 4: Simplify right side
    18,340.24x = 262,687,441.43
  5. Step 5: Solve for x
    x = 262,687,441.43/18,340.24
  6. Step 6: Final answer
    x = 14,323.01

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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.