Home / 11,380.99-15,701.43-8,403.97

Finding the Fourth Proportional to 11,380.99, 15,701.43 and 8,403.97

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Solution

The fourth proportional to 11,380.99, 15,701.43 and 8,403.97 is: 11,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.99 : 15,701.43 = 8,403.97 : x
  2. Step 2: Convert to fraction form
    11,380.99/15,701.43 = 8,403.97/x
  3. Step 3: Cross multiply
    11,380.99x = 15,701.43 × 8,403.97
  4. Step 4: Simplify right side
    11,380.99x = 131,954,346.68
  5. Step 5: Solve for x
    x = 131,954,346.68/11,380.99
  6. Step 6: Final answer
    x = 11,594.28

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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.