Home / 7,868.87-11,810.60-3,976.01

Finding the Fourth Proportional to 7,868.87, 11,810.60 and 3,976.01

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Solution

The fourth proportional to 7,868.87, 11,810.60 and 3,976.01 is: 5,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.87 : 11,810.60 = 3,976.01 : x
  2. Step 2: Convert to fraction form
    7,868.87/11,810.60 = 3,976.01/x
  3. Step 3: Cross multiply
    7,868.87x = 11,810.60 × 3,976.01
  4. Step 4: Simplify right side
    7,868.87x = 46,959,043.83
  5. Step 5: Solve for x
    x = 46,959,043.83/7,868.87
  6. Step 6: Final answer
    x = 5,967.70

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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.