Home / 11,271.74-16,881.32-5,711.58

Finding the Fourth Proportional to 11,271.74, 16,881.32 and 5,711.58

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Solution

The fourth proportional to 11,271.74, 16,881.32 and 5,711.58 is: 8,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.74 : 16,881.32 = 5,711.58 : x
  2. Step 2: Convert to fraction form
    11,271.74/16,881.32 = 5,711.58/x
  3. Step 3: Cross multiply
    11,271.74x = 16,881.32 × 5,711.58
  4. Step 4: Simplify right side
    11,271.74x = 96,419,009.69
  5. Step 5: Solve for x
    x = 96,419,009.69/11,271.74
  6. Step 6: Final answer
    x = 8,554.05

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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.