Home / 11,142.02-15,375.44-6,668.22

Finding the Fourth Proportional to 11,142.02, 15,375.44 and 6,668.22

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Solution

The fourth proportional to 11,142.02, 15,375.44 and 6,668.22 is: 9,201.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.02 : 15,375.44 = 6,668.22 : x
  2. Step 2: Convert to fraction form
    11,142.02/15,375.44 = 6,668.22/x
  3. Step 3: Cross multiply
    11,142.02x = 15,375.44 × 6,668.22
  4. Step 4: Simplify right side
    11,142.02x = 102,526,783.18
  5. Step 5: Solve for x
    x = 102,526,783.18/11,142.02
  6. Step 6: Final answer
    x = 9,201.82

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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.