Home / 13,286.93-19,930.32-4,964.79

Finding the Fourth Proportional to 13,286.93, 19,930.32 and 4,964.79

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Solution

The fourth proportional to 13,286.93, 19,930.32 and 4,964.79 is: 7,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.93 : 19,930.32 = 4,964.79 : x
  2. Step 2: Convert to fraction form
    13,286.93/19,930.32 = 4,964.79/x
  3. Step 3: Cross multiply
    13,286.93x = 19,930.32 × 4,964.79
  4. Step 4: Simplify right side
    13,286.93x = 98,949,853.43
  5. Step 5: Solve for x
    x = 98,949,853.43/13,286.93
  6. Step 6: Final answer
    x = 7,447.16

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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.