Home / 8,110.14-12,166.85-3,430.14

Finding the Fourth Proportional to 8,110.14, 12,166.85 and 3,430.14

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Solution

The fourth proportional to 8,110.14, 12,166.85 and 3,430.14 is: 5,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.14 : 12,166.85 = 3,430.14 : x
  2. Step 2: Convert to fraction form
    8,110.14/12,166.85 = 3,430.14/x
  3. Step 3: Cross multiply
    8,110.14x = 12,166.85 × 3,430.14
  4. Step 4: Simplify right side
    8,110.14x = 41,733,998.86
  5. Step 5: Solve for x
    x = 41,733,998.86/8,110.14
  6. Step 6: Final answer
    x = 5,145.90

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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.