Home / 11,729.88-16,181.10-7,252.20

Finding the Fourth Proportional to 11,729.88, 16,181.10 and 7,252.20

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Solution

The fourth proportional to 11,729.88, 16,181.10 and 7,252.20 is: 10,004.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.88 : 16,181.10 = 7,252.20 : x
  2. Step 2: Convert to fraction form
    11,729.88/16,181.10 = 7,252.20/x
  3. Step 3: Cross multiply
    11,729.88x = 16,181.10 × 7,252.20
  4. Step 4: Simplify right side
    11,729.88x = 117,348,573.42
  5. Step 5: Solve for x
    x = 117,348,573.42/11,729.88
  6. Step 6: Final answer
    x = 10,004.24

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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.