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Finding the Fourth Proportional to 11,030.82, 16,546.11 and 9,078.90

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Solution

The fourth proportional to 11,030.82, 16,546.11 and 9,078.90 is: 13,618.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,030.82 : 16,546.11 = 9,078.90 : x
  2. Step 2: Convert to fraction form
    11,030.82/16,546.11 = 9,078.90/x
  3. Step 3: Cross multiply
    11,030.82x = 16,546.11 × 9,078.90
  4. Step 4: Simplify right side
    11,030.82x = 150,220,478.08
  5. Step 5: Solve for x
    x = 150,220,478.08/11,030.82
  6. Step 6: Final answer
    x = 13,618.25

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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.