Home / 8,439.36-12,662.73-3,248.88

Finding the Fourth Proportional to 8,439.36, 12,662.73 and 3,248.88

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Solution

The fourth proportional to 8,439.36, 12,662.73 and 3,248.88 is: 4,874.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.36 : 12,662.73 = 3,248.88 : x
  2. Step 2: Convert to fraction form
    8,439.36/12,662.73 = 3,248.88/x
  3. Step 3: Cross multiply
    8,439.36x = 12,662.73 × 3,248.88
  4. Step 4: Simplify right side
    8,439.36x = 41,139,690.24
  5. Step 5: Solve for x
    x = 41,139,690.24/8,439.36
  6. Step 6: Final answer
    x = 4,874.74

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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.