Home / 11,179.00-15,420.60-6,979.96

Finding the Fourth Proportional to 11,179.00, 15,420.60 and 6,979.96

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Solution

The fourth proportional to 11,179.00, 15,420.60 and 6,979.96 is: 9,628.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.00 : 15,420.60 = 6,979.96 : x
  2. Step 2: Convert to fraction form
    11,179.00/15,420.60 = 6,979.96/x
  3. Step 3: Cross multiply
    11,179.00x = 15,420.60 × 6,979.96
  4. Step 4: Simplify right side
    11,179.00x = 107,635,191.36
  5. Step 5: Solve for x
    x = 107,635,191.36/11,179.00
  6. Step 6: Final answer
    x = 9,628.34

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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.