Home / 8,126.76-12,190.08-6,650.52

Finding the Fourth Proportional to 8,126.76, 12,190.08 and 6,650.52

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Solution

The fourth proportional to 8,126.76, 12,190.08 and 6,650.52 is: 9,975.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.76 : 12,190.08 = 6,650.52 : x
  2. Step 2: Convert to fraction form
    8,126.76/12,190.08 = 6,650.52/x
  3. Step 3: Cross multiply
    8,126.76x = 12,190.08 × 6,650.52
  4. Step 4: Simplify right side
    8,126.76x = 81,070,370.84
  5. Step 5: Solve for x
    x = 81,070,370.84/8,126.76
  6. Step 6: Final answer
    x = 9,975.73

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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.