Home / 8,126.11-12,176.37-6,281.74

Finding the Fourth Proportional to 8,126.11, 12,176.37 and 6,281.74

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Solution

The fourth proportional to 8,126.11, 12,176.37 and 6,281.74 is: 9,412.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.11 : 12,176.37 = 6,281.74 : x
  2. Step 2: Convert to fraction form
    8,126.11/12,176.37 = 6,281.74/x
  3. Step 3: Cross multiply
    8,126.11x = 12,176.37 × 6,281.74
  4. Step 4: Simplify right side
    8,126.11x = 76,488,790.48
  5. Step 5: Solve for x
    x = 76,488,790.48/8,126.11
  6. Step 6: Final answer
    x = 9,412.72

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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.