Home / 11,845.56-16,343.88-6,811.20

Finding the Fourth Proportional to 11,845.56, 16,343.88 and 6,811.20

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Solution

The fourth proportional to 11,845.56, 16,343.88 and 6,811.20 is: 9,397.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,845.56 : 16,343.88 = 6,811.20 : x
  2. Step 2: Convert to fraction form
    11,845.56/16,343.88 = 6,811.20/x
  3. Step 3: Cross multiply
    11,845.56x = 16,343.88 × 6,811.20
  4. Step 4: Simplify right side
    11,845.56x = 111,321,435.46
  5. Step 5: Solve for x
    x = 111,321,435.46/11,845.56
  6. Step 6: Final answer
    x = 9,397.74

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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.