Home / 8,439.88-12,652.44-4,276.30

Finding the Fourth Proportional to 8,439.88, 12,652.44 and 4,276.30

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Solution

The fourth proportional to 8,439.88, 12,652.44 and 4,276.30 is: 6,410.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.88 : 12,652.44 = 4,276.30 : x
  2. Step 2: Convert to fraction form
    8,439.88/12,652.44 = 4,276.30/x
  3. Step 3: Cross multiply
    8,439.88x = 12,652.44 × 4,276.30
  4. Step 4: Simplify right side
    8,439.88x = 54,105,629.17
  5. Step 5: Solve for x
    x = 54,105,629.17/8,439.88
  6. Step 6: Final answer
    x = 6,410.71

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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.