Home / 18,721.97-25,836.42-10,223.99

Finding the Fourth Proportional to 18,721.97, 25,836.42 and 10,223.99

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Solution

The fourth proportional to 18,721.97, 25,836.42 and 10,223.99 is: 14,109.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.97 : 25,836.42 = 10,223.99 : x
  2. Step 2: Convert to fraction form
    18,721.97/25,836.42 = 10,223.99/x
  3. Step 3: Cross multiply
    18,721.97x = 25,836.42 × 10,223.99
  4. Step 4: Simplify right side
    18,721.97x = 264,151,119.41
  5. Step 5: Solve for x
    x = 264,151,119.41/18,721.97
  6. Step 6: Final answer
    x = 14,109.16

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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.