Home / 11,209.17-16,816.25-3,418.59

Finding the Fourth Proportional to 11,209.17, 16,816.25 and 3,418.59

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Solution

The fourth proportional to 11,209.17, 16,816.25 and 3,418.59 is: 5,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.17 : 16,816.25 = 3,418.59 : x
  2. Step 2: Convert to fraction form
    11,209.17/16,816.25 = 3,418.59/x
  3. Step 3: Cross multiply
    11,209.17x = 16,816.25 × 3,418.59
  4. Step 4: Simplify right side
    11,209.17x = 57,487,864.09
  5. Step 5: Solve for x
    x = 57,487,864.09/11,209.17
  6. Step 6: Final answer
    x = 5,128.65

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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.