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Finding the Fourth Proportional to 9,105.03, 13,639.19 and 6,645.03

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Solution

The fourth proportional to 9,105.03, 13,639.19 and 6,645.03 is: 9,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,105.03 : 13,639.19 = 6,645.03 : x
  2. Step 2: Convert to fraction form
    9,105.03/13,639.19 = 6,645.03/x
  3. Step 3: Cross multiply
    9,105.03x = 13,639.19 × 6,645.03
  4. Step 4: Simplify right side
    9,105.03x = 90,632,793.50
  5. Step 5: Solve for x
    x = 90,632,793.50/9,105.03
  6. Step 6: Final answer
    x = 9,954.15

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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.