Home / 10,979.34-16,466.30-3,186.60

Finding the Fourth Proportional to 10,979.34, 16,466.30 and 3,186.60

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Solution

The fourth proportional to 10,979.34, 16,466.30 and 3,186.60 is: 4,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.34 : 16,466.30 = 3,186.60 : x
  2. Step 2: Convert to fraction form
    10,979.34/16,466.30 = 3,186.60/x
  3. Step 3: Cross multiply
    10,979.34x = 16,466.30 × 3,186.60
  4. Step 4: Simplify right side
    10,979.34x = 52,471,511.58
  5. Step 5: Solve for x
    x = 52,471,511.58/10,979.34
  6. Step 6: Final answer
    x = 4,779.11

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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.