Home / 8,505.12-12,760.38-4,346.22

Finding the Fourth Proportional to 8,505.12, 12,760.38 and 4,346.22

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Solution

The fourth proportional to 8,505.12, 12,760.38 and 4,346.22 is: 6,520.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.12 : 12,760.38 = 4,346.22 : x
  2. Step 2: Convert to fraction form
    8,505.12/12,760.38 = 4,346.22/x
  3. Step 3: Cross multiply
    8,505.12x = 12,760.38 × 4,346.22
  4. Step 4: Simplify right side
    8,505.12x = 55,459,418.76
  5. Step 5: Solve for x
    x = 55,459,418.76/8,505.12
  6. Step 6: Final answer
    x = 6,520.71

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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.