Home / 13,118.09-19,659.83-5,322.65

Finding the Fourth Proportional to 13,118.09, 19,659.83 and 5,322.65

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Solution

The fourth proportional to 13,118.09, 19,659.83 and 5,322.65 is: 7,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.09 : 19,659.83 = 5,322.65 : x
  2. Step 2: Convert to fraction form
    13,118.09/19,659.83 = 5,322.65/x
  3. Step 3: Cross multiply
    13,118.09x = 19,659.83 × 5,322.65
  4. Step 4: Simplify right side
    13,118.09x = 104,642,269.24
  5. Step 5: Solve for x
    x = 104,642,269.24/13,118.09
  6. Step 6: Final answer
    x = 7,976.95

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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.