Home / 10,078.22-15,120.05-3,504.77

Finding the Fourth Proportional to 10,078.22, 15,120.05 and 3,504.77

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Solution

The fourth proportional to 10,078.22, 15,120.05 and 3,504.77 is: 5,258.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.22 : 15,120.05 = 3,504.77 : x
  2. Step 2: Convert to fraction form
    10,078.22/15,120.05 = 3,504.77/x
  3. Step 3: Cross multiply
    10,078.22x = 15,120.05 × 3,504.77
  4. Step 4: Simplify right side
    10,078.22x = 52,992,204.51
  5. Step 5: Solve for x
    x = 52,992,204.51/10,078.22
  6. Step 6: Final answer
    x = 5,258.09

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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.