Home / 11,220.17-16,830.39-4,109.53

Finding the Fourth Proportional to 11,220.17, 16,830.39 and 4,109.53

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Solution

The fourth proportional to 11,220.17, 16,830.39 and 4,109.53 is: 6,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.17 : 16,830.39 = 4,109.53 : x
  2. Step 2: Convert to fraction form
    11,220.17/16,830.39 = 4,109.53/x
  3. Step 3: Cross multiply
    11,220.17x = 16,830.39 × 4,109.53
  4. Step 4: Simplify right side
    11,220.17x = 69,164,992.62
  5. Step 5: Solve for x
    x = 69,164,992.62/11,220.17
  6. Step 6: Final answer
    x = 6,164.34

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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.