Home / 11,197.08-16,772.40-7,675.20

Finding the Fourth Proportional to 11,197.08, 16,772.40 and 7,675.20

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Solution

The fourth proportional to 11,197.08, 16,772.40 and 7,675.20 is: 11,496.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,197.08 : 16,772.40 = 7,675.20 : x
  2. Step 2: Convert to fraction form
    11,197.08/16,772.40 = 7,675.20/x
  3. Step 3: Cross multiply
    11,197.08x = 16,772.40 × 7,675.20
  4. Step 4: Simplify right side
    11,197.08x = 128,731,524.48
  5. Step 5: Solve for x
    x = 128,731,524.48/11,197.08
  6. Step 6: Final answer
    x = 11,496.88

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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.