Home / 11,148.36-16,711.56-5,309.08

Finding the Fourth Proportional to 11,148.36, 16,711.56 and 5,309.08

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Solution

The fourth proportional to 11,148.36, 16,711.56 and 5,309.08 is: 7,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.36 : 16,711.56 = 5,309.08 : x
  2. Step 2: Convert to fraction form
    11,148.36/16,711.56 = 5,309.08/x
  3. Step 3: Cross multiply
    11,148.36x = 16,711.56 × 5,309.08
  4. Step 4: Simplify right side
    11,148.36x = 88,723,008.96
  5. Step 5: Solve for x
    x = 88,723,008.96/11,148.36
  6. Step 6: Final answer
    x = 7,958.39

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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.