Home / 13,933.45-20,902.81-5,168.04

Finding the Fourth Proportional to 13,933.45, 20,902.81 and 5,168.04

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Solution

The fourth proportional to 13,933.45, 20,902.81 and 5,168.04 is: 7,753.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.45 : 20,902.81 = 5,168.04 : x
  2. Step 2: Convert to fraction form
    13,933.45/20,902.81 = 5,168.04/x
  3. Step 3: Cross multiply
    13,933.45x = 20,902.81 × 5,168.04
  4. Step 4: Simplify right side
    13,933.45x = 108,026,558.19
  5. Step 5: Solve for x
    x = 108,026,558.19/13,933.45
  6. Step 6: Final answer
    x = 7,753.04

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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.