Home / 11,190.85-15,443.78-6,155.46

Finding the Fourth Proportional to 11,190.85, 15,443.78 and 6,155.46

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Solution

The fourth proportional to 11,190.85, 15,443.78 and 6,155.46 is: 8,494.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.85 : 15,443.78 = 6,155.46 : x
  2. Step 2: Convert to fraction form
    11,190.85/15,443.78 = 6,155.46/x
  3. Step 3: Cross multiply
    11,190.85x = 15,443.78 × 6,155.46
  4. Step 4: Simplify right side
    11,190.85x = 95,063,570.04
  5. Step 5: Solve for x
    x = 95,063,570.04/11,190.85
  6. Step 6: Final answer
    x = 8,494.76

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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.