Home / 11,113.43-15,342.11-8,589.83

Finding the Fourth Proportional to 11,113.43, 15,342.11 and 8,589.83

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Solution

The fourth proportional to 11,113.43, 15,342.11 and 8,589.83 is: 11,858.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.43 : 15,342.11 = 8,589.83 : x
  2. Step 2: Convert to fraction form
    11,113.43/15,342.11 = 8,589.83/x
  3. Step 3: Cross multiply
    11,113.43x = 15,342.11 × 8,589.83
  4. Step 4: Simplify right side
    11,113.43x = 131,786,112.15
  5. Step 5: Solve for x
    x = 131,786,112.15/11,113.43
  6. Step 6: Final answer
    x = 11,858.28

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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.