Home / 13,802.71-20,703.82-3,414.46

Finding the Fourth Proportional to 13,802.71, 20,703.82 and 3,414.46

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Solution

The fourth proportional to 13,802.71, 20,703.82 and 3,414.46 is: 5,121.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.71 : 20,703.82 = 3,414.46 : x
  2. Step 2: Convert to fraction form
    13,802.71/20,703.82 = 3,414.46/x
  3. Step 3: Cross multiply
    13,802.71x = 20,703.82 × 3,414.46
  4. Step 4: Simplify right side
    13,802.71x = 70,692,365.24
  5. Step 5: Solve for x
    x = 70,692,365.24/13,802.71
  6. Step 6: Final answer
    x = 5,121.63

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1.5x scale

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.