Home / 8,313.43-12,466.48-3,115.66

Finding the Fourth Proportional to 8,313.43, 12,466.48 and 3,115.66

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Solution

The fourth proportional to 8,313.43, 12,466.48 and 3,115.66 is: 4,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.43 : 12,466.48 = 3,115.66 : x
  2. Step 2: Convert to fraction form
    8,313.43/12,466.48 = 3,115.66/x
  3. Step 3: Cross multiply
    8,313.43x = 12,466.48 × 3,115.66
  4. Step 4: Simplify right side
    8,313.43x = 38,841,305.29
  5. Step 5: Solve for x
    x = 38,841,305.29/8,313.43
  6. Step 6: Final answer
    x = 4,672.12

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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.