Home / 13,676.62-20,553.40-8,130.96

Finding the Fourth Proportional to 13,676.62, 20,553.40 and 8,130.96

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Solution

The fourth proportional to 13,676.62, 20,553.40 and 8,130.96 is: 12,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.62 : 20,553.40 = 8,130.96 : x
  2. Step 2: Convert to fraction form
    13,676.62/20,553.40 = 8,130.96/x
  3. Step 3: Cross multiply
    13,676.62x = 20,553.40 × 8,130.96
  4. Step 4: Simplify right side
    13,676.62x = 167,118,873.26
  5. Step 5: Solve for x
    x = 167,118,873.26/13,676.62
  6. Step 6: Final answer
    x = 12,219.31

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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.