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Finding the Fourth Proportional to 11,900.66, 17,852.81 and 3,136.25

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Solution

The fourth proportional to 11,900.66, 17,852.81 and 3,136.25 is: 4,704.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.66 : 17,852.81 = 3,136.25 : x
  2. Step 2: Convert to fraction form
    11,900.66/17,852.81 = 3,136.25/x
  3. Step 3: Cross multiply
    11,900.66x = 17,852.81 × 3,136.25
  4. Step 4: Simplify right side
    11,900.66x = 55,990,904.31
  5. Step 5: Solve for x
    x = 55,990,904.31/11,900.66
  6. Step 6: Final answer
    x = 4,704.86

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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.