Home / 7,912.20-11,870.14-2,365.96

Finding the Fourth Proportional to 7,912.20, 11,870.14 and 2,365.96

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Solution

The fourth proportional to 7,912.20, 11,870.14 and 2,365.96 is: 3,549.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.20 : 11,870.14 = 2,365.96 : x
  2. Step 2: Convert to fraction form
    7,912.20/11,870.14 = 2,365.96/x
  3. Step 3: Cross multiply
    7,912.20x = 11,870.14 × 2,365.96
  4. Step 4: Simplify right side
    7,912.20x = 28,084,276.43
  5. Step 5: Solve for x
    x = 28,084,276.43/7,912.20
  6. Step 6: Final answer
    x = 3,549.49

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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.