Home / 8,131.32-12,186.86-4,373.87

Finding the Fourth Proportional to 8,131.32, 12,186.86 and 4,373.87

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Solution

The fourth proportional to 8,131.32, 12,186.86 and 4,373.87 is: 6,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.32 : 12,186.86 = 4,373.87 : x
  2. Step 2: Convert to fraction form
    8,131.32/12,186.86 = 4,373.87/x
  3. Step 3: Cross multiply
    8,131.32x = 12,186.86 × 4,373.87
  4. Step 4: Simplify right side
    8,131.32x = 53,303,658.54
  5. Step 5: Solve for x
    x = 53,303,658.54/8,131.32
  6. Step 6: Final answer
    x = 6,555.35

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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.