Home / 14,091.30-21,135.87-3,702.78

Finding the Fourth Proportional to 14,091.30, 21,135.87 and 3,702.78

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Solution

The fourth proportional to 14,091.30, 21,135.87 and 3,702.78 is: 5,553.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.30 : 21,135.87 = 3,702.78 : x
  2. Step 2: Convert to fraction form
    14,091.30/21,135.87 = 3,702.78/x
  3. Step 3: Cross multiply
    14,091.30x = 21,135.87 × 3,702.78
  4. Step 4: Simplify right side
    14,091.30x = 78,261,476.72
  5. Step 5: Solve for x
    x = 78,261,476.72/14,091.30
  6. Step 6: Final answer
    x = 5,553.89

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1.5x scale

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.