Home / 12,305.32-18,461.08-3,540.04

Finding the Fourth Proportional to 12,305.32, 18,461.08 and 3,540.04

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Solution

The fourth proportional to 12,305.32, 18,461.08 and 3,540.04 is: 5,310.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.32 : 18,461.08 = 3,540.04 : x
  2. Step 2: Convert to fraction form
    12,305.32/18,461.08 = 3,540.04/x
  3. Step 3: Cross multiply
    12,305.32x = 18,461.08 × 3,540.04
  4. Step 4: Simplify right side
    12,305.32x = 65,352,961.64
  5. Step 5: Solve for x
    x = 65,352,961.64/12,305.32
  6. Step 6: Final answer
    x = 5,310.95

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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.