Home / 12,449.14-18,679.38-4,658.56

Finding the Fourth Proportional to 12,449.14, 18,679.38 and 4,658.56

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Solution

The fourth proportional to 12,449.14, 18,679.38 and 4,658.56 is: 6,989.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.14 : 18,679.38 = 4,658.56 : x
  2. Step 2: Convert to fraction form
    12,449.14/18,679.38 = 4,658.56/x
  3. Step 3: Cross multiply
    12,449.14x = 18,679.38 × 4,658.56
  4. Step 4: Simplify right side
    12,449.14x = 87,019,012.49
  5. Step 5: Solve for x
    x = 87,019,012.49/12,449.14
  6. Step 6: Final answer
    x = 6,989.96

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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.