Home / 18,713.28-25,824.31-10,329.78

Finding the Fourth Proportional to 18,713.28, 25,824.31 and 10,329.78

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Solution

The fourth proportional to 18,713.28, 25,824.31 and 10,329.78 is: 14,255.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.28 : 25,824.31 = 10,329.78 : x
  2. Step 2: Convert to fraction form
    18,713.28/25,824.31 = 10,329.78/x
  3. Step 3: Cross multiply
    18,713.28x = 25,824.31 × 10,329.78
  4. Step 4: Simplify right side
    18,713.28x = 266,759,440.95
  5. Step 5: Solve for x
    x = 266,759,440.95/18,713.28
  6. Step 6: Final answer
    x = 14,255.09

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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.