Home / 12,180.74-18,247.41-8,008.16

Finding the Fourth Proportional to 12,180.74, 18,247.41 and 8,008.16

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Solution

The fourth proportional to 12,180.74, 18,247.41 and 8,008.16 is: 11,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.74 : 18,247.41 = 8,008.16 : x
  2. Step 2: Convert to fraction form
    12,180.74/18,247.41 = 8,008.16/x
  3. Step 3: Cross multiply
    12,180.74x = 18,247.41 × 8,008.16
  4. Step 4: Simplify right side
    12,180.74x = 146,128,087.63
  5. Step 5: Solve for x
    x = 146,128,087.63/12,180.74
  6. Step 6: Final answer
    x = 11,996.66

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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.