Home / 12,449.70-18,676.58-4,659.12

Finding the Fourth Proportional to 12,449.70, 18,676.58 and 4,659.12

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Solution

The fourth proportional to 12,449.70, 18,676.58 and 4,659.12 is: 6,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.70 : 18,676.58 = 4,659.12 : x
  2. Step 2: Convert to fraction form
    12,449.70/18,676.58 = 4,659.12/x
  3. Step 3: Cross multiply
    12,449.70x = 18,676.58 × 4,659.12
  4. Step 4: Simplify right side
    12,449.70x = 87,016,404.11
  5. Step 5: Solve for x
    x = 87,016,404.11/12,449.70
  6. Step 6: Final answer
    x = 6,989.44

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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.