Home / 13,471.86-20,205.36-4,109.64

Finding the Fourth Proportional to 13,471.86, 20,205.36 and 4,109.64

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Solution

The fourth proportional to 13,471.86, 20,205.36 and 4,109.64 is: 6,163.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.86 : 20,205.36 = 4,109.64 : x
  2. Step 2: Convert to fraction form
    13,471.86/20,205.36 = 4,109.64/x
  3. Step 3: Cross multiply
    13,471.86x = 20,205.36 × 4,109.64
  4. Step 4: Simplify right side
    13,471.86x = 83,036,755.67
  5. Step 5: Solve for x
    x = 83,036,755.67/13,471.86
  6. Step 6: Final answer
    x = 6,163.72

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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.