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Finding the Fourth Proportional to 12,180.03, 18,270.18 and 4,388.91

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Solution

The fourth proportional to 12,180.03, 18,270.18 and 4,388.91 is: 6,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.03 : 18,270.18 = 4,388.91 : x
  2. Step 2: Convert to fraction form
    12,180.03/18,270.18 = 4,388.91/x
  3. Step 3: Cross multiply
    12,180.03x = 18,270.18 × 4,388.91
  4. Step 4: Simplify right side
    12,180.03x = 80,186,175.70
  5. Step 5: Solve for x
    x = 80,186,175.70/12,180.03
  6. Step 6: Final answer
    x = 6,583.41

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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.