Home / 13,324.60-19,989.74-3,964.65

Finding the Fourth Proportional to 13,324.60, 19,989.74 and 3,964.65

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Solution

The fourth proportional to 13,324.60, 19,989.74 and 3,964.65 is: 5,947.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.60 : 19,989.74 = 3,964.65 : x
  2. Step 2: Convert to fraction form
    13,324.60/19,989.74 = 3,964.65/x
  3. Step 3: Cross multiply
    13,324.60x = 19,989.74 × 3,964.65
  4. Step 4: Simplify right side
    13,324.60x = 79,252,322.69
  5. Step 5: Solve for x
    x = 79,252,322.69/13,324.60
  6. Step 6: Final answer
    x = 5,947.82

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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.