Home / 18,817.28-25,969.02-10,433.78

Finding the Fourth Proportional to 18,817.28, 25,969.02 and 10,433.78

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Solution

The fourth proportional to 18,817.28, 25,969.02 and 10,433.78 is: 14,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.28 : 25,969.02 = 10,433.78 : x
  2. Step 2: Convert to fraction form
    18,817.28/25,969.02 = 10,433.78/x
  3. Step 3: Cross multiply
    18,817.28x = 25,969.02 × 10,433.78
  4. Step 4: Simplify right side
    18,817.28x = 270,955,067.29
  5. Step 5: Solve for x
    x = 270,955,067.29/18,817.28
  6. Step 6: Final answer
    x = 14,399.27

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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.