Home / 11,142.04-15,375.54-6,663.14

Finding the Fourth Proportional to 11,142.04, 15,375.54 and 6,663.14

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Solution

The fourth proportional to 11,142.04, 15,375.54 and 6,663.14 is: 9,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.04 : 15,375.54 = 6,663.14 : x
  2. Step 2: Convert to fraction form
    11,142.04/15,375.54 = 6,663.14/x
  3. Step 3: Cross multiply
    11,142.04x = 15,375.54 × 6,663.14
  4. Step 4: Simplify right side
    11,142.04x = 102,449,375.60
  5. Step 5: Solve for x
    x = 102,449,375.60/11,142.04
  6. Step 6: Final answer
    x = 9,194.85

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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.