Home / 18,721.57-25,835.82-10,223.77

Finding the Fourth Proportional to 18,721.57, 25,835.82 and 10,223.77

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Solution

The fourth proportional to 18,721.57, 25,835.82 and 10,223.77 is: 14,108.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.57 : 25,835.82 = 10,223.77 : x
  2. Step 2: Convert to fraction form
    18,721.57/25,835.82 = 10,223.77/x
  3. Step 3: Cross multiply
    18,721.57x = 25,835.82 × 10,223.77
  4. Step 4: Simplify right side
    18,721.57x = 264,139,481.44
  5. Step 5: Solve for x
    x = 264,139,481.44/18,721.57
  6. Step 6: Final answer
    x = 14,108.83

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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.