Home / 15,490.98-23,221.89-7,692.30

Finding the Fourth Proportional to 15,490.98, 23,221.89 and 7,692.30

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Solution

The fourth proportional to 15,490.98, 23,221.89 and 7,692.30 is: 11,531.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,490.98 : 23,221.89 = 7,692.30 : x
  2. Step 2: Convert to fraction form
    15,490.98/23,221.89 = 7,692.30/x
  3. Step 3: Cross multiply
    15,490.98x = 23,221.89 × 7,692.30
  4. Step 4: Simplify right side
    15,490.98x = 178,629,744.45
  5. Step 5: Solve for x
    x = 178,629,744.45/15,490.98
  6. Step 6: Final answer
    x = 11,531.21

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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.