Home / 13,713.88-20,570.82-4,948.78

Finding the Fourth Proportional to 13,713.88, 20,570.82 and 4,948.78

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Solution

The fourth proportional to 13,713.88, 20,570.82 and 4,948.78 is: 7,423.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.88 : 20,570.82 = 4,948.78 : x
  2. Step 2: Convert to fraction form
    13,713.88/20,570.82 = 4,948.78/x
  3. Step 3: Cross multiply
    13,713.88x = 20,570.82 × 4,948.78
  4. Step 4: Simplify right side
    13,713.88x = 101,800,462.60
  5. Step 5: Solve for x
    x = 101,800,462.60/13,713.88
  6. Step 6: Final answer
    x = 7,423.17

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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.