Home / 13,868.54-20,802.90-3,480.26

Finding the Fourth Proportional to 13,868.54, 20,802.90 and 3,480.26

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Solution

The fourth proportional to 13,868.54, 20,802.90 and 3,480.26 is: 5,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.54 : 20,802.90 = 3,480.26 : x
  2. Step 2: Convert to fraction form
    13,868.54/20,802.90 = 3,480.26/x
  3. Step 3: Cross multiply
    13,868.54x = 20,802.90 × 3,480.26
  4. Step 4: Simplify right side
    13,868.54x = 72,399,500.75
  5. Step 5: Solve for x
    x = 72,399,500.75/13,868.54
  6. Step 6: Final answer
    x = 5,220.41

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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.