Home / 7,912.74-11,859.30-5,277.90

Finding the Fourth Proportional to 7,912.74, 11,859.30 and 5,277.90

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Solution

The fourth proportional to 7,912.74, 11,859.30 and 5,277.90 is: 7,910.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.74 : 11,859.30 = 5,277.90 : x
  2. Step 2: Convert to fraction form
    7,912.74/11,859.30 = 5,277.90/x
  3. Step 3: Cross multiply
    7,912.74x = 11,859.30 × 5,277.90
  4. Step 4: Simplify right side
    7,912.74x = 62,592,199.47
  5. Step 5: Solve for x
    x = 62,592,199.47/7,912.74
  6. Step 6: Final answer
    x = 7,910.31

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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.