Home / 11,199.76-15,454.56-6,485.56

Finding the Fourth Proportional to 11,199.76, 15,454.56 and 6,485.56

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Solution

The fourth proportional to 11,199.76, 15,454.56 and 6,485.56 is: 8,949.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,199.76 : 15,454.56 = 6,485.56 : x
  2. Step 2: Convert to fraction form
    11,199.76/15,454.56 = 6,485.56/x
  3. Step 3: Cross multiply
    11,199.76x = 15,454.56 × 6,485.56
  4. Step 4: Simplify right side
    11,199.76x = 100,231,476.15
  5. Step 5: Solve for x
    x = 100,231,476.15/11,199.76
  6. Step 6: Final answer
    x = 8,949.43

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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.