Home / 16,239.68-22,388.60-12,147.69

Finding the Fourth Proportional to 16,239.68, 22,388.60 and 12,147.69

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Solution

The fourth proportional to 16,239.68, 22,388.60 and 12,147.69 is: 16,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,239.68 : 22,388.60 = 12,147.69 : x
  2. Step 2: Convert to fraction form
    16,239.68/22,388.60 = 12,147.69/x
  3. Step 3: Cross multiply
    16,239.68x = 22,388.60 × 12,147.69
  4. Step 4: Simplify right side
    16,239.68x = 271,969,772.33
  5. Step 5: Solve for x
    x = 271,969,772.33/16,239.68
  6. Step 6: Final answer
    x = 16,747.24

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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.