Home / 13,810.88-20,702.28-5,496.78

Finding the Fourth Proportional to 13,810.88, 20,702.28 and 5,496.78

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Solution

The fourth proportional to 13,810.88, 20,702.28 and 5,496.78 is: 8,239.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.88 : 20,702.28 = 5,496.78 : x
  2. Step 2: Convert to fraction form
    13,810.88/20,702.28 = 5,496.78/x
  3. Step 3: Cross multiply
    13,810.88x = 20,702.28 × 5,496.78
  4. Step 4: Simplify right side
    13,810.88x = 113,795,878.66
  5. Step 5: Solve for x
    x = 113,795,878.66/13,810.88
  6. Step 6: Final answer
    x = 8,239.58

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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.