Home / 12,298.75-18,449.93-3,976

Finding the Fourth Proportional to 12,298.75, 18,449.93 and 3,976

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Solution

The fourth proportional to 12,298.75, 18,449.93 and 3,976 is: 5,964.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298.75 : 18,449.93 = 3,976 : x
  2. Step 2: Convert to fraction form
    12,298.75/18,449.93 = 3,976/x
  3. Step 3: Cross multiply
    12,298.75x = 18,449.93 × 3,976
  4. Step 4: Simplify right side
    12,298.75x = 73,356,921.68
  5. Step 5: Solve for x
    x = 73,356,921.68/12,298.75
  6. Step 6: Final answer
    x = 5,964.58

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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.