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Finding the Fourth Proportional to 8,671.25, 13,009.79 and 2,749.10

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Solution

The fourth proportional to 8,671.25, 13,009.79 and 2,749.10 is: 4,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.25 : 13,009.79 = 2,749.10 : x
  2. Step 2: Convert to fraction form
    8,671.25/13,009.79 = 2,749.10/x
  3. Step 3: Cross multiply
    8,671.25x = 13,009.79 × 2,749.10
  4. Step 4: Simplify right side
    8,671.25x = 35,765,213.69
  5. Step 5: Solve for x
    x = 35,765,213.69/8,671.25
  6. Step 6: Final answer
    x = 4,124.58

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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.