Home / 13,913.70-20,871.27-6,795.78

Finding the Fourth Proportional to 13,913.70, 20,871.27 and 6,795.78

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Solution

The fourth proportional to 13,913.70, 20,871.27 and 6,795.78 is: 10,194.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.70 : 20,871.27 = 6,795.78 : x
  2. Step 2: Convert to fraction form
    13,913.70/20,871.27 = 6,795.78/x
  3. Step 3: Cross multiply
    13,913.70x = 20,871.27 × 6,795.78
  4. Step 4: Simplify right side
    13,913.70x = 141,836,559.24
  5. Step 5: Solve for x
    x = 141,836,559.24/13,913.70
  6. Step 6: Final answer
    x = 10,194.02

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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.