Home / 10,249.71-14,144.97-5,712.80

Finding the Fourth Proportional to 10,249.71, 14,144.97 and 5,712.80

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Solution

The fourth proportional to 10,249.71, 14,144.97 and 5,712.80 is: 7,883.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,249.71 : 14,144.97 = 5,712.80 : x
  2. Step 2: Convert to fraction form
    10,249.71/14,144.97 = 5,712.80/x
  3. Step 3: Cross multiply
    10,249.71x = 14,144.97 × 5,712.80
  4. Step 4: Simplify right side
    10,249.71x = 80,807,313.89
  5. Step 5: Solve for x
    x = 80,807,313.89/10,249.71
  6. Step 6: Final answer
    x = 7,883.86

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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.