Home / 21,136.14-29,168.07-11,704.89

Finding the Fourth Proportional to 21,136.14, 29,168.07 and 11,704.89

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Solution

The fourth proportional to 21,136.14, 29,168.07 and 11,704.89 is: 16,152.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.14 : 29,168.07 = 11,704.89 : x
  2. Step 2: Convert to fraction form
    21,136.14/29,168.07 = 11,704.89/x
  3. Step 3: Cross multiply
    21,136.14x = 29,168.07 × 11,704.89
  4. Step 4: Simplify right side
    21,136.14x = 341,409,050.86
  5. Step 5: Solve for x
    x = 341,409,050.86/21,136.14
  6. Step 6: Final answer
    x = 16,152.86

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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.