Home / 11,272.91-16,909.75-3,877.31

Finding the Fourth Proportional to 11,272.91, 16,909.75 and 3,877.31

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Solution

The fourth proportional to 11,272.91, 16,909.75 and 3,877.31 is: 5,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.91 : 16,909.75 = 3,877.31 : x
  2. Step 2: Convert to fraction form
    11,272.91/16,909.75 = 3,877.31/x
  3. Step 3: Cross multiply
    11,272.91x = 16,909.75 × 3,877.31
  4. Step 4: Simplify right side
    11,272.91x = 65,564,342.77
  5. Step 5: Solve for x
    x = 65,564,342.77/11,272.91
  6. Step 6: Final answer
    x = 5,816.10

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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.