Home / 8,358.37-12,538.16-2,811.69

Finding the Fourth Proportional to 8,358.37, 12,538.16 and 2,811.69

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Solution

The fourth proportional to 8,358.37, 12,538.16 and 2,811.69 is: 4,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.37 : 12,538.16 = 2,811.69 : x
  2. Step 2: Convert to fraction form
    8,358.37/12,538.16 = 2,811.69/x
  3. Step 3: Cross multiply
    8,358.37x = 12,538.16 × 2,811.69
  4. Step 4: Simplify right side
    8,358.37x = 35,253,419.09
  5. Step 5: Solve for x
    x = 35,253,419.09/8,358.37
  6. Step 6: Final answer
    x = 4,217.74

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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.