Home / 8,255.12-11,408.45-6,760.67

Finding the Fourth Proportional to 8,255.12, 11,408.45 and 6,760.67

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Solution

The fourth proportional to 8,255.12, 11,408.45 and 6,760.67 is: 9,343.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.12 : 11,408.45 = 6,760.67 : x
  2. Step 2: Convert to fraction form
    8,255.12/11,408.45 = 6,760.67/x
  3. Step 3: Cross multiply
    8,255.12x = 11,408.45 × 6,760.67
  4. Step 4: Simplify right side
    8,255.12x = 77,128,674.82
  5. Step 5: Solve for x
    x = 77,128,674.82/8,255.12
  6. Step 6: Final answer
    x = 9,343.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.