Home / 12,231.90-16,966.62-11,812.32

Finding the Fourth Proportional to 12,231.90, 16,966.62 and 11,812.32

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Solution

The fourth proportional to 12,231.90, 16,966.62 and 11,812.32 is: 16,384.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.90 : 16,966.62 = 11,812.32 : x
  2. Step 2: Convert to fraction form
    12,231.90/16,966.62 = 11,812.32/x
  3. Step 3: Cross multiply
    12,231.90x = 16,966.62 × 11,812.32
  4. Step 4: Simplify right side
    12,231.90x = 200,415,144.76
  5. Step 5: Solve for x
    x = 200,415,144.76/12,231.90
  6. Step 6: Final answer
    x = 16,384.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.