Home / 11,142.02-15,375.80-6,663.23

Finding the Fourth Proportional to 11,142.02, 15,375.80 and 6,663.23

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Solution

The fourth proportional to 11,142.02, 15,375.80 and 6,663.23 is: 9,195.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.02 : 15,375.80 = 6,663.23 : x
  2. Step 2: Convert to fraction form
    11,142.02/15,375.80 = 6,663.23/x
  3. Step 3: Cross multiply
    11,142.02x = 15,375.80 × 6,663.23
  4. Step 4: Simplify right side
    11,142.02x = 102,452,491.83
  5. Step 5: Solve for x
    x = 102,452,491.83/11,142.02
  6. Step 6: Final answer
    x = 9,195.15

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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.