Home / 13,550.86-20,311.46-6,977.44

Finding the Fourth Proportional to 13,550.86, 20,311.46 and 6,977.44

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Solution

The fourth proportional to 13,550.86, 20,311.46 and 6,977.44 is: 10,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.86 : 20,311.46 = 6,977.44 : x
  2. Step 2: Convert to fraction form
    13,550.86/20,311.46 = 6,977.44/x
  3. Step 3: Cross multiply
    13,550.86x = 20,311.46 × 6,977.44
  4. Step 4: Simplify right side
    13,550.86x = 141,721,857.02
  5. Step 5: Solve for x
    x = 141,721,857.02/13,550.86
  6. Step 6: Final answer
    x = 10,458.52

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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.