Home / 7,815.15-11,723.50-2,549.95

Finding the Fourth Proportional to 7,815.15, 11,723.50 and 2,549.95

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Solution

The fourth proportional to 7,815.15, 11,723.50 and 2,549.95 is: 3,825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.15 : 11,723.50 = 2,549.95 : x
  2. Step 2: Convert to fraction form
    7,815.15/11,723.50 = 2,549.95/x
  3. Step 3: Cross multiply
    7,815.15x = 11,723.50 × 2,549.95
  4. Step 4: Simplify right side
    7,815.15x = 29,894,345.68
  5. Step 5: Solve for x
    x = 29,894,345.68/7,815.15
  6. Step 6: Final answer
    x = 3,825.18

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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.