Home / 19,135.17-28,708.20-7,451.73

Finding the Fourth Proportional to 19,135.17, 28,708.20 and 7,451.73

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Solution

The fourth proportional to 19,135.17, 28,708.20 and 7,451.73 is: 11,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.17 : 28,708.20 = 7,451.73 : x
  2. Step 2: Convert to fraction form
    19,135.17/28,708.20 = 7,451.73/x
  3. Step 3: Cross multiply
    19,135.17x = 28,708.20 × 7,451.73
  4. Step 4: Simplify right side
    19,135.17x = 213,925,755.19
  5. Step 5: Solve for x
    x = 213,925,755.19/19,135.17
  6. Step 6: Final answer
    x = 11,179.72

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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.