Home / 13,372.86-20,066.31-7,837.05

Finding the Fourth Proportional to 13,372.86, 20,066.31 and 7,837.05

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Solution

The fourth proportional to 13,372.86, 20,066.31 and 7,837.05 is: 11,759.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.86 : 20,066.31 = 7,837.05 : x
  2. Step 2: Convert to fraction form
    13,372.86/20,066.31 = 7,837.05/x
  3. Step 3: Cross multiply
    13,372.86x = 20,066.31 × 7,837.05
  4. Step 4: Simplify right side
    13,372.86x = 157,260,674.79
  5. Step 5: Solve for x
    x = 157,260,674.79/13,372.86
  6. Step 6: Final answer
    x = 11,759.69

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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.