Home / 13,279.87-19,932.09-6,710.66

Finding the Fourth Proportional to 13,279.87, 19,932.09 and 6,710.66

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Solution

The fourth proportional to 13,279.87, 19,932.09 and 6,710.66 is: 10,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.87 : 19,932.09 = 6,710.66 : x
  2. Step 2: Convert to fraction form
    13,279.87/19,932.09 = 6,710.66/x
  3. Step 3: Cross multiply
    13,279.87x = 19,932.09 × 6,710.66
  4. Step 4: Simplify right side
    13,279.87x = 133,757,479.08
  5. Step 5: Solve for x
    x = 133,757,479.08/13,279.87
  6. Step 6: Final answer
    x = 10,072.20

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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.