Home / 8,281.56-12,434.64-3,360.84

Finding the Fourth Proportional to 8,281.56, 12,434.64 and 3,360.84

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Solution

The fourth proportional to 8,281.56, 12,434.64 and 3,360.84 is: 5,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.56 : 12,434.64 = 3,360.84 : x
  2. Step 2: Convert to fraction form
    8,281.56/12,434.64 = 3,360.84/x
  3. Step 3: Cross multiply
    8,281.56x = 12,434.64 × 3,360.84
  4. Step 4: Simplify right side
    8,281.56x = 41,790,835.50
  5. Step 5: Solve for x
    x = 41,790,835.50/8,281.56
  6. Step 6: Final answer
    x = 5,046.25

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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.