Home / 7,245.22-10,871.47-5,400.04

Finding the Fourth Proportional to 7,245.22, 10,871.47 and 5,400.04

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Solution

The fourth proportional to 7,245.22, 10,871.47 and 5,400.04 is: 8,102.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.22 : 10,871.47 = 5,400.04 : x
  2. Step 2: Convert to fraction form
    7,245.22/10,871.47 = 5,400.04/x
  3. Step 3: Cross multiply
    7,245.22x = 10,871.47 × 5,400.04
  4. Step 4: Simplify right side
    7,245.22x = 58,706,372.86
  5. Step 5: Solve for x
    x = 58,706,372.86/7,245.22
  6. Step 6: Final answer
    x = 8,102.77

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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.