Home / 10,979.25-16,478.19-4,409.88

Finding the Fourth Proportional to 10,979.25, 16,478.19 and 4,409.88

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Solution

The fourth proportional to 10,979.25, 16,478.19 and 4,409.88 is: 6,618.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.25 : 16,478.19 = 4,409.88 : x
  2. Step 2: Convert to fraction form
    10,979.25/16,478.19 = 4,409.88/x
  3. Step 3: Cross multiply
    10,979.25x = 16,478.19 × 4,409.88
  4. Step 4: Simplify right side
    10,979.25x = 72,666,840.52
  5. Step 5: Solve for x
    x = 72,666,840.52/10,979.25
  6. Step 6: Final answer
    x = 6,618.56

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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.