Home / 11,768.48-16,236.59-6,989.88

Finding the Fourth Proportional to 11,768.48, 16,236.59 and 6,989.88

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Solution

The fourth proportional to 11,768.48, 16,236.59 and 6,989.88 is: 9,643.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,768.48 : 16,236.59 = 6,989.88 : x
  2. Step 2: Convert to fraction form
    11,768.48/16,236.59 = 6,989.88/x
  3. Step 3: Cross multiply
    11,768.48x = 16,236.59 × 6,989.88
  4. Step 4: Simplify right side
    11,768.48x = 113,491,780.76
  5. Step 5: Solve for x
    x = 113,491,780.76/11,768.48
  6. Step 6: Final answer
    x = 9,643.71

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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.