Home / 11,845.58-17,769.30-6,915.71

Finding the Fourth Proportional to 11,845.58, 17,769.30 and 6,915.71

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Solution

The fourth proportional to 11,845.58, 17,769.30 and 6,915.71 is: 10,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,845.58 : 17,769.30 = 6,915.71 : x
  2. Step 2: Convert to fraction form
    11,845.58/17,769.30 = 6,915.71/x
  3. Step 3: Cross multiply
    11,845.58x = 17,769.30 × 6,915.71
  4. Step 4: Simplify right side
    11,845.58x = 122,887,236.86
  5. Step 5: Solve for x
    x = 122,887,236.86/11,845.58
  6. Step 6: Final answer
    x = 10,374.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.