Home / 18,702.75-28,091.49-11,695.23

Finding the Fourth Proportional to 18,702.75, 28,091.49 and 11,695.23

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Solution

The fourth proportional to 18,702.75, 28,091.49 and 11,695.23 is: 17,566.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.75 : 28,091.49 = 11,695.23 : x
  2. Step 2: Convert to fraction form
    18,702.75/28,091.49 = 11,695.23/x
  3. Step 3: Cross multiply
    18,702.75x = 28,091.49 × 11,695.23
  4. Step 4: Simplify right side
    18,702.75x = 328,536,436.59
  5. Step 5: Solve for x
    x = 328,536,436.59/18,702.75
  6. Step 6: Final answer
    x = 17,566.21

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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.