Home / 13,663.67-20,505.49-8,745.35

Finding the Fourth Proportional to 13,663.67, 20,505.49 and 8,745.35

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Solution

The fourth proportional to 13,663.67, 20,505.49 and 8,745.35 is: 13,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.67 : 20,505.49 = 8,745.35 : x
  2. Step 2: Convert to fraction form
    13,663.67/20,505.49 = 8,745.35/x
  3. Step 3: Cross multiply
    13,663.67x = 20,505.49 × 8,745.35
  4. Step 4: Simplify right side
    13,663.67x = 179,327,562.58
  5. Step 5: Solve for x
    x = 179,327,562.58/13,663.67
  6. Step 6: Final answer
    x = 13,124.41

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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.