Home / 10,213.56-15,317.91-2,817.86

Finding the Fourth Proportional to 10,213.56, 15,317.91 and 2,817.86

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Solution

The fourth proportional to 10,213.56, 15,317.91 and 2,817.86 is: 4,226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,213.56 : 15,317.91 = 2,817.86 : x
  2. Step 2: Convert to fraction form
    10,213.56/15,317.91 = 2,817.86/x
  3. Step 3: Cross multiply
    10,213.56x = 15,317.91 × 2,817.86
  4. Step 4: Simplify right side
    10,213.56x = 43,163,649.28
  5. Step 5: Solve for x
    x = 43,163,649.28/10,213.56
  6. Step 6: Final answer
    x = 4,226.11

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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.