Home / 19,131.73-28,700.55-9,766.68

Finding the Fourth Proportional to 19,131.73, 28,700.55 and 9,766.68

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Solution

The fourth proportional to 19,131.73, 28,700.55 and 9,766.68 is: 14,651.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.73 : 28,700.55 = 9,766.68 : x
  2. Step 2: Convert to fraction form
    19,131.73/28,700.55 = 9,766.68/x
  3. Step 3: Cross multiply
    19,131.73x = 28,700.55 × 9,766.68
  4. Step 4: Simplify right side
    19,131.73x = 280,309,087.67
  5. Step 5: Solve for x
    x = 280,309,087.67/19,131.73
  6. Step 6: Final answer
    x = 14,651.53

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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.