Home / 9,389.78-14,084.66-2,815.97

Finding the Fourth Proportional to 9,389.78, 14,084.66 and 2,815.97

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Solution

The fourth proportional to 9,389.78, 14,084.66 and 2,815.97 is: 4,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.78 : 14,084.66 = 2,815.97 : x
  2. Step 2: Convert to fraction form
    9,389.78/14,084.66 = 2,815.97/x
  3. Step 3: Cross multiply
    9,389.78x = 14,084.66 × 2,815.97
  4. Step 4: Simplify right side
    9,389.78x = 39,661,895.52
  5. Step 5: Solve for x
    x = 39,661,895.52/9,389.78
  6. Step 6: Final answer
    x = 4,223.95

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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.