Home / 8,519.57-12,775.70-2,971.26

Finding the Fourth Proportional to 8,519.57, 12,775.70 and 2,971.26

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Solution

The fourth proportional to 8,519.57, 12,775.70 and 2,971.26 is: 4,455.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.57 : 12,775.70 = 2,971.26 : x
  2. Step 2: Convert to fraction form
    8,519.57/12,775.70 = 2,971.26/x
  3. Step 3: Cross multiply
    8,519.57x = 12,775.70 × 2,971.26
  4. Step 4: Simplify right side
    8,519.57x = 37,959,911.53
  5. Step 5: Solve for x
    x = 37,959,911.53/8,519.57
  6. Step 6: Final answer
    x = 4,455.62

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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.