Home / 8,670.90-13,001.38-2,665.41

Finding the Fourth Proportional to 8,670.90, 13,001.38 and 2,665.41

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Solution

The fourth proportional to 8,670.90, 13,001.38 and 2,665.41 is: 3,996.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.90 : 13,001.38 = 2,665.41 : x
  2. Step 2: Convert to fraction form
    8,670.90/13,001.38 = 2,665.41/x
  3. Step 3: Cross multiply
    8,670.90x = 13,001.38 × 2,665.41
  4. Step 4: Simplify right side
    8,670.90x = 34,654,037.22
  5. Step 5: Solve for x
    x = 34,654,037.22/8,670.90
  6. Step 6: Final answer
    x = 3,996.59

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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.