Home / 11,138.22-16,707.30-4,977.90

Finding the Fourth Proportional to 11,138.22, 16,707.30 and 4,977.90

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Solution

The fourth proportional to 11,138.22, 16,707.30 and 4,977.90 is: 7,466.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.22 : 16,707.30 = 4,977.90 : x
  2. Step 2: Convert to fraction form
    11,138.22/16,707.30 = 4,977.90/x
  3. Step 3: Cross multiply
    11,138.22x = 16,707.30 × 4,977.90
  4. Step 4: Simplify right side
    11,138.22x = 83,167,268.67
  5. Step 5: Solve for x
    x = 83,167,268.67/11,138.22
  6. Step 6: Final answer
    x = 7,466.84

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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.