Home / 8,313.31-12,465.81-2,764.71

Finding the Fourth Proportional to 8,313.31, 12,465.81 and 2,764.71

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Solution

The fourth proportional to 8,313.31, 12,465.81 and 2,764.71 is: 4,145.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.31 : 12,465.81 = 2,764.71 : x
  2. Step 2: Convert to fraction form
    8,313.31/12,465.81 = 2,764.71/x
  3. Step 3: Cross multiply
    8,313.31x = 12,465.81 × 2,764.71
  4. Step 4: Simplify right side
    8,313.31x = 34,464,349.57
  5. Step 5: Solve for x
    x = 34,464,349.57/8,313.31
  6. Step 6: Final answer
    x = 4,145.68

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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.