Home / 13,511.89-20,269.86-4,745.26

Finding the Fourth Proportional to 13,511.89, 20,269.86 and 4,745.26

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Solution

The fourth proportional to 13,511.89, 20,269.86 and 4,745.26 is: 7,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.89 : 20,269.86 = 4,745.26 : x
  2. Step 2: Convert to fraction form
    13,511.89/20,269.86 = 4,745.26/x
  3. Step 3: Cross multiply
    13,511.89x = 20,269.86 × 4,745.26
  4. Step 4: Simplify right side
    13,511.89x = 96,185,755.86
  5. Step 5: Solve for x
    x = 96,185,755.86/13,511.89
  6. Step 6: Final answer
    x = 7,118.60

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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.