Home / 13,676.40-20,502.45-8,998.65

Finding the Fourth Proportional to 13,676.40, 20,502.45 and 8,998.65

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Solution

The fourth proportional to 13,676.40, 20,502.45 and 8,998.65 is: 13,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.40 : 20,502.45 = 8,998.65 : x
  2. Step 2: Convert to fraction form
    13,676.40/20,502.45 = 8,998.65/x
  3. Step 3: Cross multiply
    13,676.40x = 20,502.45 × 8,998.65
  4. Step 4: Simplify right side
    13,676.40x = 184,494,371.69
  5. Step 5: Solve for x
    x = 184,494,371.69/13,676.40
  6. Step 6: Final answer
    x = 13,489.98

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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.