Home / 18,621.97-25,695.43-11,065.49

Finding the Fourth Proportional to 18,621.97, 25,695.43 and 11,065.49

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Solution

The fourth proportional to 18,621.97, 25,695.43 and 11,065.49 is: 15,268.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.97 : 25,695.43 = 11,065.49 : x
  2. Step 2: Convert to fraction form
    18,621.97/25,695.43 = 11,065.49/x
  3. Step 3: Cross multiply
    18,621.97x = 25,695.43 × 11,065.49
  4. Step 4: Simplify right side
    18,621.97x = 284,332,523.71
  5. Step 5: Solve for x
    x = 284,332,523.71/18,621.97
  6. Step 6: Final answer
    x = 15,268.66

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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.