Home / 13,676.20-18,876.68-8,908.03

Finding the Fourth Proportional to 13,676.20, 18,876.68 and 8,908.03

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Solution

The fourth proportional to 13,676.20, 18,876.68 and 8,908.03 is: 12,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.20 : 18,876.68 = 8,908.03 : x
  2. Step 2: Convert to fraction form
    13,676.20/18,876.68 = 8,908.03/x
  3. Step 3: Cross multiply
    13,676.20x = 18,876.68 × 8,908.03
  4. Step 4: Simplify right side
    13,676.20x = 168,154,031.74
  5. Step 5: Solve for x
    x = 168,154,031.74/13,676.20
  6. Step 6: Final answer
    x = 12,295.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.