Home / 19,778.22-29,669.91-7,306.98

Finding the Fourth Proportional to 19,778.22, 29,669.91 and 7,306.98

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Solution

The fourth proportional to 19,778.22, 29,669.91 and 7,306.98 is: 10,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.22 : 29,669.91 = 7,306.98 : x
  2. Step 2: Convert to fraction form
    19,778.22/29,669.91 = 7,306.98/x
  3. Step 3: Cross multiply
    19,778.22x = 29,669.91 × 7,306.98
  4. Step 4: Simplify right side
    19,778.22x = 216,797,438.97
  5. Step 5: Solve for x
    x = 216,797,438.97/19,778.22
  6. Step 6: Final answer
    x = 10,961.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.