Home / 18,521.27-25,555.41-10,969.97

Finding the Fourth Proportional to 18,521.27, 25,555.41 and 10,969.97

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Solution

The fourth proportional to 18,521.27, 25,555.41 and 10,969.97 is: 15,136.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.27 : 25,555.41 = 10,969.97 : x
  2. Step 2: Convert to fraction form
    18,521.27/25,555.41 = 10,969.97/x
  3. Step 3: Cross multiply
    18,521.27x = 25,555.41 × 10,969.97
  4. Step 4: Simplify right side
    18,521.27x = 280,342,081.04
  5. Step 5: Solve for x
    x = 280,342,081.04/18,521.27
  6. Step 6: Final answer
    x = 15,136.22

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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.