Home / 13,226-19,839.80-3,992.08

Finding the Fourth Proportional to 13,226, 19,839.80 and 3,992.08

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Solution

The fourth proportional to 13,226, 19,839.80 and 3,992.08 is: 5,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226 : 19,839.80 = 3,992.08 : x
  2. Step 2: Convert to fraction form
    13,226/19,839.80 = 3,992.08/x
  3. Step 3: Cross multiply
    13,226x = 19,839.80 × 3,992.08
  4. Step 4: Simplify right side
    13,226x = 79,202,068.78
  5. Step 5: Solve for x
    x = 79,202,068.78/13,226
  6. Step 6: Final answer
    x = 5,988.36

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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.