Home / 7,947.87-11,917.13-3,017.86

Finding the Fourth Proportional to 7,947.87, 11,917.13 and 3,017.86

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Solution

The fourth proportional to 7,947.87, 11,917.13 and 3,017.86 is: 4,525.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.87 : 11,917.13 = 3,017.86 : x
  2. Step 2: Convert to fraction form
    7,947.87/11,917.13 = 3,017.86/x
  3. Step 3: Cross multiply
    7,947.87x = 11,917.13 × 3,017.86
  4. Step 4: Simplify right side
    7,947.87x = 35,964,185.06
  5. Step 5: Solve for x
    x = 35,964,185.06/7,947.87
  6. Step 6: Final answer
    x = 4,525.01

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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.