Home / 8,105.86-11,186.97-4,703.62

Finding the Fourth Proportional to 8,105.86, 11,186.97 and 4,703.62

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Solution

The fourth proportional to 8,105.86, 11,186.97 and 4,703.62 is: 6,491.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.86 : 11,186.97 = 4,703.62 : x
  2. Step 2: Convert to fraction form
    8,105.86/11,186.97 = 4,703.62/x
  3. Step 3: Cross multiply
    8,105.86x = 11,186.97 × 4,703.62
  4. Step 4: Simplify right side
    8,105.86x = 52,619,199.90
  5. Step 5: Solve for x
    x = 52,619,199.90/8,105.86
  6. Step 6: Final answer
    x = 6,491.51

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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.