Home / 13,854.28-20,790.30-6,838.11

Finding the Fourth Proportional to 13,854.28, 20,790.30 and 6,838.11

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Solution

The fourth proportional to 13,854.28, 20,790.30 and 6,838.11 is: 10,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.28 : 20,790.30 = 6,838.11 : x
  2. Step 2: Convert to fraction form
    13,854.28/20,790.30 = 6,838.11/x
  3. Step 3: Cross multiply
    13,854.28x = 20,790.30 × 6,838.11
  4. Step 4: Simplify right side
    13,854.28x = 142,166,358.33
  5. Step 5: Solve for x
    x = 142,166,358.33/13,854.28
  6. Step 6: Final answer
    x = 10,261.55

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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.