Home / 11,001.88-16,509.30-5,158.54

Finding the Fourth Proportional to 11,001.88, 16,509.30 and 5,158.54

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Solution

The fourth proportional to 11,001.88, 16,509.30 and 5,158.54 is: 7,740.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.88 : 16,509.30 = 5,158.54 : x
  2. Step 2: Convert to fraction form
    11,001.88/16,509.30 = 5,158.54/x
  3. Step 3: Cross multiply
    11,001.88x = 16,509.30 × 5,158.54
  4. Step 4: Simplify right side
    11,001.88x = 85,163,884.42
  5. Step 5: Solve for x
    x = 85,163,884.42/11,001.88
  6. Step 6: Final answer
    x = 7,740.85

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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.