Home / 11,478.22-17,220.05-4,083.32

Finding the Fourth Proportional to 11,478.22, 17,220.05 and 4,083.32

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Solution

The fourth proportional to 11,478.22, 17,220.05 and 4,083.32 is: 6,125.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.22 : 17,220.05 = 4,083.32 : x
  2. Step 2: Convert to fraction form
    11,478.22/17,220.05 = 4,083.32/x
  3. Step 3: Cross multiply
    11,478.22x = 17,220.05 × 4,083.32
  4. Step 4: Simplify right side
    11,478.22x = 70,314,974.57
  5. Step 5: Solve for x
    x = 70,314,974.57/11,478.22
  6. Step 6: Final answer
    x = 6,125.95

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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.