Home / 19,316.32-28,974.80-6,179.76

Finding the Fourth Proportional to 19,316.32, 28,974.80 and 6,179.76

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Solution

The fourth proportional to 19,316.32, 28,974.80 and 6,179.76 is: 9,269.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316.32 : 28,974.80 = 6,179.76 : x
  2. Step 2: Convert to fraction form
    19,316.32/28,974.80 = 6,179.76/x
  3. Step 3: Cross multiply
    19,316.32x = 28,974.80 × 6,179.76
  4. Step 4: Simplify right side
    19,316.32x = 179,057,310.05
  5. Step 5: Solve for x
    x = 179,057,310.05/19,316.32
  6. Step 6: Final answer
    x = 9,269.74

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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.