Home / 7,869.89-11,782.77-4,163.74

Finding the Fourth Proportional to 7,869.89, 11,782.77 and 4,163.74

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Solution

The fourth proportional to 7,869.89, 11,782.77 and 4,163.74 is: 6,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.89 : 11,782.77 = 4,163.74 : x
  2. Step 2: Convert to fraction form
    7,869.89/11,782.77 = 4,163.74/x
  3. Step 3: Cross multiply
    7,869.89x = 11,782.77 × 4,163.74
  4. Step 4: Simplify right side
    7,869.89x = 49,060,345.69
  5. Step 5: Solve for x
    x = 49,060,345.69/7,869.89
  6. Step 6: Final answer
    x = 6,233.93

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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.