Home / 11,220.22-16,830.33-3,428.97

Finding the Fourth Proportional to 11,220.22, 16,830.33 and 3,428.97

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Solution

The fourth proportional to 11,220.22, 16,830.33 and 3,428.97 is: 5,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.22 : 16,830.33 = 3,428.97 : x
  2. Step 2: Convert to fraction form
    11,220.22/16,830.33 = 3,428.97/x
  3. Step 3: Cross multiply
    11,220.22x = 16,830.33 × 3,428.97
  4. Step 4: Simplify right side
    11,220.22x = 57,710,696.66
  5. Step 5: Solve for x
    x = 57,710,696.66/11,220.22
  6. Step 6: Final answer
    x = 5,143.46

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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.