Home / 13,207.20-19,786.80-6,266.40

Finding the Fourth Proportional to 13,207.20, 19,786.80 and 6,266.40

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Solution

The fourth proportional to 13,207.20, 19,786.80 and 6,266.40 is: 9,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.20 : 19,786.80 = 6,266.40 : x
  2. Step 2: Convert to fraction form
    13,207.20/19,786.80 = 6,266.40/x
  3. Step 3: Cross multiply
    13,207.20x = 19,786.80 × 6,266.40
  4. Step 4: Simplify right side
    13,207.20x = 123,992,003.52
  5. Step 5: Solve for x
    x = 123,992,003.52/13,207.20
  6. Step 6: Final answer
    x = 9,388.21

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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.