Home / 8,513.72-12,757.58-3,580.66

Finding the Fourth Proportional to 8,513.72, 12,757.58 and 3,580.66

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Solution

The fourth proportional to 8,513.72, 12,757.58 and 3,580.66 is: 5,365.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.72 : 12,757.58 = 3,580.66 : x
  2. Step 2: Convert to fraction form
    8,513.72/12,757.58 = 3,580.66/x
  3. Step 3: Cross multiply
    8,513.72x = 12,757.58 × 3,580.66
  4. Step 4: Simplify right side
    8,513.72x = 45,680,556.40
  5. Step 5: Solve for x
    x = 45,680,556.40/8,513.72
  6. Step 6: Final answer
    x = 5,365.52

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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.