Home / 13,226.97-19,835.45-5,326.80

Finding the Fourth Proportional to 13,226.97, 19,835.45 and 5,326.80

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Solution

The fourth proportional to 13,226.97, 19,835.45 and 5,326.80 is: 7,988.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.97 : 19,835.45 = 5,326.80 : x
  2. Step 2: Convert to fraction form
    13,226.97/19,835.45 = 5,326.80/x
  3. Step 3: Cross multiply
    13,226.97x = 19,835.45 × 5,326.80
  4. Step 4: Simplify right side
    13,226.97x = 105,659,475.06
  5. Step 5: Solve for x
    x = 105,659,475.06/13,226.97
  6. Step 6: Final answer
    x = 7,988.18

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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.