Home / 10,679.14-16,019.31-4,439.71

Finding the Fourth Proportional to 10,679.14, 16,019.31 and 4,439.71

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Solution

The fourth proportional to 10,679.14, 16,019.31 and 4,439.71 is: 6,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,679.14 : 16,019.31 = 4,439.71 : x
  2. Step 2: Convert to fraction form
    10,679.14/16,019.31 = 4,439.71/x
  3. Step 3: Cross multiply
    10,679.14x = 16,019.31 × 4,439.71
  4. Step 4: Simplify right side
    10,679.14x = 71,121,090.80
  5. Step 5: Solve for x
    x = 71,121,090.80/10,679.14
  6. Step 6: Final answer
    x = 6,659.81

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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.