Home / 13,511.85-20,273.85-4,753.05

Finding the Fourth Proportional to 13,511.85, 20,273.85 and 4,753.05

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Solution

The fourth proportional to 13,511.85, 20,273.85 and 4,753.05 is: 7,131.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.85 : 20,273.85 = 4,753.05 : x
  2. Step 2: Convert to fraction form
    13,511.85/20,273.85 = 4,753.05/x
  3. Step 3: Cross multiply
    13,511.85x = 20,273.85 × 4,753.05
  4. Step 4: Simplify right side
    13,511.85x = 96,362,622.74
  5. Step 5: Solve for x
    x = 96,362,622.74/13,511.85
  6. Step 6: Final answer
    x = 7,131.71

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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.