Home / 11,955.98-16,497.39-6,650.78

Finding the Fourth Proportional to 11,955.98, 16,497.39 and 6,650.78

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Solution

The fourth proportional to 11,955.98, 16,497.39 and 6,650.78 is: 9,177.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.98 : 16,497.39 = 6,650.78 : x
  2. Step 2: Convert to fraction form
    11,955.98/16,497.39 = 6,650.78/x
  3. Step 3: Cross multiply
    11,955.98x = 16,497.39 × 6,650.78
  4. Step 4: Simplify right side
    11,955.98x = 109,720,511.46
  5. Step 5: Solve for x
    x = 109,720,511.46/11,955.98
  6. Step 6: Final answer
    x = 9,177.04

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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.