Home / 18,721.23-25,834.89-10,223.02

Finding the Fourth Proportional to 18,721.23, 25,834.89 and 10,223.02

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Solution

The fourth proportional to 18,721.23, 25,834.89 and 10,223.02 is: 14,107.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.23 : 25,834.89 = 10,223.02 : x
  2. Step 2: Convert to fraction form
    18,721.23/25,834.89 = 10,223.02/x
  3. Step 3: Cross multiply
    18,721.23x = 25,834.89 × 10,223.02
  4. Step 4: Simplify right side
    18,721.23x = 264,110,597.17
  5. Step 5: Solve for x
    x = 264,110,597.17/18,721.23
  6. Step 6: Final answer
    x = 14,107.55

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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.