Home / 14,331.44-19,778.57-7,958.43

Finding the Fourth Proportional to 14,331.44, 19,778.57 and 7,958.43

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Solution

The fourth proportional to 14,331.44, 19,778.57 and 7,958.43 is: 10,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,331.44 : 19,778.57 = 7,958.43 : x
  2. Step 2: Convert to fraction form
    14,331.44/19,778.57 = 7,958.43/x
  3. Step 3: Cross multiply
    14,331.44x = 19,778.57 × 7,958.43
  4. Step 4: Simplify right side
    14,331.44x = 157,406,364.85
  5. Step 5: Solve for x
    x = 157,406,364.85/14,331.44
  6. Step 6: Final answer
    x = 10,983.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.