Home / 19,309.12-26,648.82-11,759.87

Finding the Fourth Proportional to 19,309.12, 26,648.82 and 11,759.87

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Solution

The fourth proportional to 19,309.12, 26,648.82 and 11,759.87 is: 16,229.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309.12 : 26,648.82 = 11,759.87 : x
  2. Step 2: Convert to fraction form
    19,309.12/26,648.82 = 11,759.87/x
  3. Step 3: Cross multiply
    19,309.12x = 26,648.82 × 11,759.87
  4. Step 4: Simplify right side
    19,309.12x = 313,386,658.85
  5. Step 5: Solve for x
    x = 313,386,658.85/19,309.12
  6. Step 6: Final answer
    x = 16,229.99

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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.