Home / 8,127.13-12,183.39-6,749.32

Finding the Fourth Proportional to 8,127.13, 12,183.39 and 6,749.32

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Solution

The fourth proportional to 8,127.13, 12,183.39 and 6,749.32 is: 10,117.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.13 : 12,183.39 = 6,749.32 : x
  2. Step 2: Convert to fraction form
    8,127.13/12,183.39 = 6,749.32/x
  3. Step 3: Cross multiply
    8,127.13x = 12,183.39 × 6,749.32
  4. Step 4: Simplify right side
    8,127.13x = 82,229,597.79
  5. Step 5: Solve for x
    x = 82,229,597.79/8,127.13
  6. Step 6: Final answer
    x = 10,117.91

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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.