Home / 12,446.12-18,671.78-4,125.64

Finding the Fourth Proportional to 12,446.12, 18,671.78 and 4,125.64

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Solution

The fourth proportional to 12,446.12, 18,671.78 and 4,125.64 is: 6,189.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.12 : 18,671.78 = 4,125.64 : x
  2. Step 2: Convert to fraction form
    12,446.12/18,671.78 = 4,125.64/x
  3. Step 3: Cross multiply
    12,446.12x = 18,671.78 × 4,125.64
  4. Step 4: Simplify right side
    12,446.12x = 77,033,042.44
  5. Step 5: Solve for x
    x = 77,033,042.44/12,446.12
  6. Step 6: Final answer
    x = 6,189.32

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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.