Home / 11,479.38-15,841.54-6,511.38

Finding the Fourth Proportional to 11,479.38, 15,841.54 and 6,511.38

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Solution

The fourth proportional to 11,479.38, 15,841.54 and 6,511.38 is: 8,985.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.38 : 15,841.54 = 6,511.38 : x
  2. Step 2: Convert to fraction form
    11,479.38/15,841.54 = 6,511.38/x
  3. Step 3: Cross multiply
    11,479.38x = 15,841.54 × 6,511.38
  4. Step 4: Simplify right side
    11,479.38x = 103,150,286.73
  5. Step 5: Solve for x
    x = 103,150,286.73/11,479.38
  6. Step 6: Final answer
    x = 8,985.70

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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.