Home / 19,131.67-28,700.46-9,766.61

Finding the Fourth Proportional to 19,131.67, 28,700.46 and 9,766.61

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Solution

The fourth proportional to 19,131.67, 28,700.46 and 9,766.61 is: 14,651.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.67 : 28,700.46 = 9,766.61 : x
  2. Step 2: Convert to fraction form
    19,131.67/28,700.46 = 9,766.61/x
  3. Step 3: Cross multiply
    19,131.67x = 28,700.46 × 9,766.61
  4. Step 4: Simplify right side
    19,131.67x = 280,306,056.14
  5. Step 5: Solve for x
    x = 280,306,056.14/19,131.67
  6. Step 6: Final answer
    x = 14,651.42

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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.