Home / 13,066.56-19,600.20-3,205.80

Finding the Fourth Proportional to 13,066.56, 19,600.20 and 3,205.80

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Solution

The fourth proportional to 13,066.56, 19,600.20 and 3,205.80 is: 4,808.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.56 : 19,600.20 = 3,205.80 : x
  2. Step 2: Convert to fraction form
    13,066.56/19,600.20 = 3,205.80/x
  3. Step 3: Cross multiply
    13,066.56x = 19,600.20 × 3,205.80
  4. Step 4: Simplify right side
    13,066.56x = 62,834,321.16
  5. Step 5: Solve for x
    x = 62,834,321.16/13,066.56
  6. Step 6: Final answer
    x = 4,808.79

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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.