Home / 8,061.89-12,097.23-3,131.72

Finding the Fourth Proportional to 8,061.89, 12,097.23 and 3,131.72

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Solution

The fourth proportional to 8,061.89, 12,097.23 and 3,131.72 is: 4,699.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,061.89 : 12,097.23 = 3,131.72 : x
  2. Step 2: Convert to fraction form
    8,061.89/12,097.23 = 3,131.72/x
  3. Step 3: Cross multiply
    8,061.89x = 12,097.23 × 3,131.72
  4. Step 4: Simplify right side
    8,061.89x = 37,885,076.65
  5. Step 5: Solve for x
    x = 37,885,076.65/8,061.89
  6. Step 6: Final answer
    x = 4,699.28

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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.