Home / 7,817.90-11,727.25-1,974.56

Finding the Fourth Proportional to 7,817.90, 11,727.25 and 1,974.56

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Solution

The fourth proportional to 7,817.90, 11,727.25 and 1,974.56 is: 2,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.90 : 11,727.25 = 1,974.56 : x
  2. Step 2: Convert to fraction form
    7,817.90/11,727.25 = 1,974.56/x
  3. Step 3: Cross multiply
    7,817.90x = 11,727.25 × 1,974.56
  4. Step 4: Simplify right side
    7,817.90x = 23,156,095.19
  5. Step 5: Solve for x
    x = 23,156,095.19/7,817.90
  6. Step 6: Final answer
    x = 2,961.93

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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.