Home / 18,849.51-28,275.48-7,755.95

Finding the Fourth Proportional to 18,849.51, 28,275.48 and 7,755.95

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Solution

The fourth proportional to 18,849.51, 28,275.48 and 7,755.95 is: 11,634.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849.51 : 28,275.48 = 7,755.95 : x
  2. Step 2: Convert to fraction form
    18,849.51/28,275.48 = 7,755.95/x
  3. Step 3: Cross multiply
    18,849.51x = 28,275.48 × 7,755.95
  4. Step 4: Simplify right side
    18,849.51x = 219,303,279.79
  5. Step 5: Solve for x
    x = 219,303,279.79/18,849.51
  6. Step 6: Final answer
    x = 11,634.43

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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.