Home / 11,209.47-16,814.21-3,418.22

Finding the Fourth Proportional to 11,209.47, 16,814.21 and 3,418.22

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Solution

The fourth proportional to 11,209.47, 16,814.21 and 3,418.22 is: 5,127.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.47 : 16,814.21 = 3,418.22 : x
  2. Step 2: Convert to fraction form
    11,209.47/16,814.21 = 3,418.22/x
  3. Step 3: Cross multiply
    11,209.47x = 16,814.21 × 3,418.22
  4. Step 4: Simplify right side
    11,209.47x = 57,474,567.74
  5. Step 5: Solve for x
    x = 57,474,567.74/11,209.47
  6. Step 6: Final answer
    x = 5,127.32

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Double scale
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Similar ratio
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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.