Home / 11,206.39-16,809.18-3,415

Finding the Fourth Proportional to 11,206.39, 16,809.18 and 3,415

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Solution

The fourth proportional to 11,206.39, 16,809.18 and 3,415 is: 5,122.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,206.39 : 16,809.18 = 3,415 : x
  2. Step 2: Convert to fraction form
    11,206.39/16,809.18 = 3,415/x
  3. Step 3: Cross multiply
    11,206.39x = 16,809.18 × 3,415
  4. Step 4: Simplify right side
    11,206.39x = 57,403,349.70
  5. Step 5: Solve for x
    x = 57,403,349.70/11,206.39
  6. Step 6: Final answer
    x = 5,122.38

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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.