Home / 10,912.44-16,370.70-5,979.36

Finding the Fourth Proportional to 10,912.44, 16,370.70 and 5,979.36

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Solution

The fourth proportional to 10,912.44, 16,370.70 and 5,979.36 is: 8,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.44 : 16,370.70 = 5,979.36 : x
  2. Step 2: Convert to fraction form
    10,912.44/16,370.70 = 5,979.36/x
  3. Step 3: Cross multiply
    10,912.44x = 16,370.70 × 5,979.36
  4. Step 4: Simplify right side
    10,912.44x = 97,886,308.75
  5. Step 5: Solve for x
    x = 97,886,308.75/10,912.44
  6. Step 6: Final answer
    x = 8,970.16

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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.