Home / 8,505.18-12,750.09-3,575.21

Finding the Fourth Proportional to 8,505.18, 12,750.09 and 3,575.21

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Solution

The fourth proportional to 8,505.18, 12,750.09 and 3,575.21 is: 5,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.18 : 12,750.09 = 3,575.21 : x
  2. Step 2: Convert to fraction form
    8,505.18/12,750.09 = 3,575.21/x
  3. Step 3: Cross multiply
    8,505.18x = 12,750.09 × 3,575.21
  4. Step 4: Simplify right side
    8,505.18x = 45,584,249.27
  5. Step 5: Solve for x
    x = 45,584,249.27/8,505.18
  6. Step 6: Final answer
    x = 5,359.59

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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.