Home / 18,922.67-26,085.98-13,239.81

Finding the Fourth Proportional to 18,922.67, 26,085.98 and 13,239.81

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Solution

The fourth proportional to 18,922.67, 26,085.98 and 13,239.81 is: 18,251.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.67 : 26,085.98 = 13,239.81 : x
  2. Step 2: Convert to fraction form
    18,922.67/26,085.98 = 13,239.81/x
  3. Step 3: Cross multiply
    18,922.67x = 26,085.98 × 13,239.81
  4. Step 4: Simplify right side
    18,922.67x = 345,373,418.86
  5. Step 5: Solve for x
    x = 345,373,418.86/18,922.67
  6. Step 6: Final answer
    x = 18,251.83

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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.