Home / 18,391.28-25,380.54-10,433.84

Finding the Fourth Proportional to 18,391.28, 25,380.54 and 10,433.84

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Solution

The fourth proportional to 18,391.28, 25,380.54 and 10,433.84 is: 14,399.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391.28 : 25,380.54 = 10,433.84 : x
  2. Step 2: Convert to fraction form
    18,391.28/25,380.54 = 10,433.84/x
  3. Step 3: Cross multiply
    18,391.28x = 25,380.54 × 10,433.84
  4. Step 4: Simplify right side
    18,391.28x = 264,816,493.47
  5. Step 5: Solve for x
    x = 264,816,493.47/18,391.28
  6. Step 6: Final answer
    x = 14,399.02

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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.