Home / 21,168.53-29,213.89-11,737.10

Finding the Fourth Proportional to 21,168.53, 29,213.89 and 11,737.10

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Solution

The fourth proportional to 21,168.53, 29,213.89 and 11,737.10 is: 16,197.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168.53 : 29,213.89 = 11,737.10 : x
  2. Step 2: Convert to fraction form
    21,168.53/29,213.89 = 11,737.10/x
  3. Step 3: Cross multiply
    21,168.53x = 29,213.89 × 11,737.10
  4. Step 4: Simplify right side
    21,168.53x = 342,886,202.25
  5. Step 5: Solve for x
    x = 342,886,202.25/21,168.53
  6. Step 6: Final answer
    x = 16,197.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.