Home / 11,418.68-17,117.64-4,394.21

Finding the Fourth Proportional to 11,418.68, 17,117.64 and 4,394.21

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Solution

The fourth proportional to 11,418.68, 17,117.64 and 4,394.21 is: 6,587.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.68 : 17,117.64 = 4,394.21 : x
  2. Step 2: Convert to fraction form
    11,418.68/17,117.64 = 4,394.21/x
  3. Step 3: Cross multiply
    11,418.68x = 17,117.64 × 4,394.21
  4. Step 4: Simplify right side
    11,418.68x = 75,218,504.86
  5. Step 5: Solve for x
    x = 75,218,504.86/11,418.68
  6. Step 6: Final answer
    x = 6,587.32

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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.