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Finding the Fourth Proportional to 8,676.97, 13,015.54 and 2,103.17

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Solution

The fourth proportional to 8,676.97, 13,015.54 and 2,103.17 is: 3,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.97 : 13,015.54 = 2,103.17 : x
  2. Step 2: Convert to fraction form
    8,676.97/13,015.54 = 2,103.17/x
  3. Step 3: Cross multiply
    8,676.97x = 13,015.54 × 2,103.17
  4. Step 4: Simplify right side
    8,676.97x = 27,373,818.98
  5. Step 5: Solve for x
    x = 27,373,818.98/8,676.97
  6. Step 6: Final answer
    x = 3,154.77

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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.