Home / 11,605.11-17,407.64-4,209.56

Finding the Fourth Proportional to 11,605.11, 17,407.64 and 4,209.56

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Solution

The fourth proportional to 11,605.11, 17,407.64 and 4,209.56 is: 6,314.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,605.11 : 17,407.64 = 4,209.56 : x
  2. Step 2: Convert to fraction form
    11,605.11/17,407.64 = 4,209.56/x
  3. Step 3: Cross multiply
    11,605.11x = 17,407.64 × 4,209.56
  4. Step 4: Simplify right side
    11,605.11x = 73,278,396.95
  5. Step 5: Solve for x
    x = 73,278,396.95/11,605.11
  6. Step 6: Final answer
    x = 6,314.32

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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.