Home / 8,621.64-12,932.46-3,427.47

Finding the Fourth Proportional to 8,621.64, 12,932.46 and 3,427.47

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Solution

The fourth proportional to 8,621.64, 12,932.46 and 3,427.47 is: 5,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.64 : 12,932.46 = 3,427.47 : x
  2. Step 2: Convert to fraction form
    8,621.64/12,932.46 = 3,427.47/x
  3. Step 3: Cross multiply
    8,621.64x = 12,932.46 × 3,427.47
  4. Step 4: Simplify right side
    8,621.64x = 44,325,618.68
  5. Step 5: Solve for x
    x = 44,325,618.68/8,621.64
  6. Step 6: Final answer
    x = 5,141.21

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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.