Home / 19,658.67-29,418.72-12,266.61

Finding the Fourth Proportional to 19,658.67, 29,418.72 and 12,266.61

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Solution

The fourth proportional to 19,658.67, 29,418.72 and 12,266.61 is: 18,356.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,658.67 : 29,418.72 = 12,266.61 : x
  2. Step 2: Convert to fraction form
    19,658.67/29,418.72 = 12,266.61/x
  3. Step 3: Cross multiply
    19,658.67x = 29,418.72 × 12,266.61
  4. Step 4: Simplify right side
    19,658.67x = 360,867,964.94
  5. Step 5: Solve for x
    x = 360,867,964.94/19,658.67
  6. Step 6: Final answer
    x = 18,356.68

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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.