Home / 11,877.48-17,818.65-4,085.28

Finding the Fourth Proportional to 11,877.48, 17,818.65 and 4,085.28

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Solution

The fourth proportional to 11,877.48, 17,818.65 and 4,085.28 is: 6,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.48 : 17,818.65 = 4,085.28 : x
  2. Step 2: Convert to fraction form
    11,877.48/17,818.65 = 4,085.28/x
  3. Step 3: Cross multiply
    11,877.48x = 17,818.65 × 4,085.28
  4. Step 4: Simplify right side
    11,877.48x = 72,794,174.47
  5. Step 5: Solve for x
    x = 72,794,174.47/11,877.48
  6. Step 6: Final answer
    x = 6,128.76

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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.