Home / 11,378.25-15,692.17-7,397.91

Finding the Fourth Proportional to 11,378.25, 15,692.17 and 7,397.91

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Solution

The fourth proportional to 11,378.25, 15,692.17 and 7,397.91 is: 10,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.25 : 15,692.17 = 7,397.91 : x
  2. Step 2: Convert to fraction form
    11,378.25/15,692.17 = 7,397.91/x
  3. Step 3: Cross multiply
    11,378.25x = 15,692.17 × 7,397.91
  4. Step 4: Simplify right side
    11,378.25x = 116,089,261.36
  5. Step 5: Solve for x
    x = 116,089,261.36/11,378.25
  6. Step 6: Final answer
    x = 10,202.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.