Home / 10,116.21-15,174.32-3,191.25

Finding the Fourth Proportional to 10,116.21, 15,174.32 and 3,191.25

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Solution

The fourth proportional to 10,116.21, 15,174.32 and 3,191.25 is: 4,786.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.21 : 15,174.32 = 3,191.25 : x
  2. Step 2: Convert to fraction form
    10,116.21/15,174.32 = 3,191.25/x
  3. Step 3: Cross multiply
    10,116.21x = 15,174.32 × 3,191.25
  4. Step 4: Simplify right side
    10,116.21x = 48,425,048.70
  5. Step 5: Solve for x
    x = 48,425,048.70/10,116.21
  6. Step 6: Final answer
    x = 4,786.88

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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.