Home / 13,676.34-20,488.59-6,755.70

Finding the Fourth Proportional to 13,676.34, 20,488.59 and 6,755.70

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Solution

The fourth proportional to 13,676.34, 20,488.59 and 6,755.70 is: 10,120.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.34 : 20,488.59 = 6,755.70 : x
  2. Step 2: Convert to fraction form
    13,676.34/20,488.59 = 6,755.70/x
  3. Step 3: Cross multiply
    13,676.34x = 20,488.59 × 6,755.70
  4. Step 4: Simplify right side
    13,676.34x = 138,414,767.46
  5. Step 5: Solve for x
    x = 138,414,767.46/13,676.34
  6. Step 6: Final answer
    x = 10,120.75

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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.