Home / 8,309.16-12,466.17-3,115.44

Finding the Fourth Proportional to 8,309.16, 12,466.17 and 3,115.44

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Solution

The fourth proportional to 8,309.16, 12,466.17 and 3,115.44 is: 4,674.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.16 : 12,466.17 = 3,115.44 : x
  2. Step 2: Convert to fraction form
    8,309.16/12,466.17 = 3,115.44/x
  3. Step 3: Cross multiply
    8,309.16x = 12,466.17 × 3,115.44
  4. Step 4: Simplify right side
    8,309.16x = 38,837,589.09
  5. Step 5: Solve for x
    x = 38,837,589.09/8,309.16
  6. Step 6: Final answer
    x = 4,674.07

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1.5x scale

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.