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Finding the Fourth Proportional to 8,881.22, 13,249.03 and 8,639.89

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Solution

The fourth proportional to 8,881.22, 13,249.03 and 8,639.89 is: 12,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.22 : 13,249.03 = 8,639.89 : x
  2. Step 2: Convert to fraction form
    8,881.22/13,249.03 = 8,639.89/x
  3. Step 3: Cross multiply
    8,881.22x = 13,249.03 × 8,639.89
  4. Step 4: Simplify right side
    8,881.22x = 114,470,052.36
  5. Step 5: Solve for x
    x = 114,470,052.36/8,881.22
  6. Step 6: Final answer
    x = 12,889.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.