Home / 8,374.32-12,563.64-3,177.36

Finding the Fourth Proportional to 8,374.32, 12,563.64 and 3,177.36

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Solution

The fourth proportional to 8,374.32, 12,563.64 and 3,177.36 is: 4,766.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.32 : 12,563.64 = 3,177.36 : x
  2. Step 2: Convert to fraction form
    8,374.32/12,563.64 = 3,177.36/x
  3. Step 3: Cross multiply
    8,374.32x = 12,563.64 × 3,177.36
  4. Step 4: Simplify right side
    8,374.32x = 39,919,207.19
  5. Step 5: Solve for x
    x = 39,919,207.19/8,374.32
  6. Step 6: Final answer
    x = 4,766.86

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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.