Home / 11,951.80-16,493.44-6,646.32

Finding the Fourth Proportional to 11,951.80, 16,493.44 and 6,646.32

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Solution

The fourth proportional to 11,951.80, 16,493.44 and 6,646.32 is: 9,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.80 : 16,493.44 = 6,646.32 : x
  2. Step 2: Convert to fraction form
    11,951.80/16,493.44 = 6,646.32/x
  3. Step 3: Cross multiply
    11,951.80x = 16,493.44 × 6,646.32
  4. Step 4: Simplify right side
    11,951.80x = 109,620,680.14
  5. Step 5: Solve for x
    x = 109,620,680.14/11,951.80
  6. Step 6: Final answer
    x = 9,171.90

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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.