Home / 13,713.45-20,570.94-3,851.96

Finding the Fourth Proportional to 13,713.45, 20,570.94 and 3,851.96

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Solution

The fourth proportional to 13,713.45, 20,570.94 and 3,851.96 is: 5,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.45 : 20,570.94 = 3,851.96 : x
  2. Step 2: Convert to fraction form
    13,713.45/20,570.94 = 3,851.96/x
  3. Step 3: Cross multiply
    13,713.45x = 20,570.94 × 3,851.96
  4. Step 4: Simplify right side
    13,713.45x = 79,238,335.19
  5. Step 5: Solve for x
    x = 79,238,335.19/13,713.45
  6. Step 6: Final answer
    x = 5,778.15

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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.