Home / 7,817.80-11,726.82-2,623.72

Finding the Fourth Proportional to 7,817.80, 11,726.82 and 2,623.72

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Solution

The fourth proportional to 7,817.80, 11,726.82 and 2,623.72 is: 3,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.80 : 11,726.82 = 2,623.72 : x
  2. Step 2: Convert to fraction form
    7,817.80/11,726.82 = 2,623.72/x
  3. Step 3: Cross multiply
    7,817.80x = 11,726.82 × 2,623.72
  4. Step 4: Simplify right side
    7,817.80x = 30,767,892.17
  5. Step 5: Solve for x
    x = 30,767,892.17/7,817.80
  6. Step 6: Final answer
    x = 3,935.62

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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.