Home / 8,108.19-11,192.34-6,312.11

Finding the Fourth Proportional to 8,108.19, 11,192.34 and 6,312.11

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Solution

The fourth proportional to 8,108.19, 11,192.34 and 6,312.11 is: 8,713.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.19 : 11,192.34 = 6,312.11 : x
  2. Step 2: Convert to fraction form
    8,108.19/11,192.34 = 6,312.11/x
  3. Step 3: Cross multiply
    8,108.19x = 11,192.34 × 6,312.11
  4. Step 4: Simplify right side
    8,108.19x = 70,647,249.68
  5. Step 5: Solve for x
    x = 70,647,249.68/8,108.19
  6. Step 6: Final answer
    x = 8,713.07

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.