Home / 11,078.22-15,293.58-8,554.66

Finding the Fourth Proportional to 11,078.22, 15,293.58 and 8,554.66

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Solution

The fourth proportional to 11,078.22, 15,293.58 and 8,554.66 is: 11,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.22 : 15,293.58 = 8,554.66 : x
  2. Step 2: Convert to fraction form
    11,078.22/15,293.58 = 8,554.66/x
  3. Step 3: Cross multiply
    11,078.22x = 15,293.58 × 8,554.66
  4. Step 4: Simplify right side
    11,078.22x = 130,831,464.98
  5. Step 5: Solve for x
    x = 130,831,464.98/11,078.22
  6. Step 6: Final answer
    x = 11,809.79

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.