Home / 7,816.64-11,726.71-2,622.38

Finding the Fourth Proportional to 7,816.64, 11,726.71 and 2,622.38

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Solution

The fourth proportional to 7,816.64, 11,726.71 and 2,622.38 is: 3,934.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.64 : 11,726.71 = 2,622.38 : x
  2. Step 2: Convert to fraction form
    7,816.64/11,726.71 = 2,622.38/x
  3. Step 3: Cross multiply
    7,816.64x = 11,726.71 × 2,622.38
  4. Step 4: Simplify right side
    7,816.64x = 30,751,824.58
  5. Step 5: Solve for x
    x = 30,751,824.58/7,816.64
  6. Step 6: Final answer
    x = 3,934.15

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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.