Home / 7,468.90-11,207.21-3,311.77

Finding the Fourth Proportional to 7,468.90, 11,207.21 and 3,311.77

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Solution

The fourth proportional to 7,468.90, 11,207.21 and 3,311.77 is: 4,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,468.90 : 11,207.21 = 3,311.77 : x
  2. Step 2: Convert to fraction form
    7,468.90/11,207.21 = 3,311.77/x
  3. Step 3: Cross multiply
    7,468.90x = 11,207.21 × 3,311.77
  4. Step 4: Simplify right side
    7,468.90x = 37,115,701.86
  5. Step 5: Solve for x
    x = 37,115,701.86/7,468.90
  6. Step 6: Final answer
    x = 4,969.37

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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.