Home / 11,186.28-16,779.93-7,914

Finding the Fourth Proportional to 11,186.28, 16,779.93 and 7,914

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Solution

The fourth proportional to 11,186.28, 16,779.93 and 7,914 is: 11,871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.28 : 16,779.93 = 7,914 : x
  2. Step 2: Convert to fraction form
    11,186.28/16,779.93 = 7,914/x
  3. Step 3: Cross multiply
    11,186.28x = 16,779.93 × 7,914
  4. Step 4: Simplify right side
    11,186.28x = 132,796,366.02
  5. Step 5: Solve for x
    x = 132,796,366.02/11,186.28
  6. Step 6: Final answer
    x = 11,871.36

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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.