Home / 13,330.86-20,001.15-7,091.43

Finding the Fourth Proportional to 13,330.86, 20,001.15 and 7,091.43

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Solution

The fourth proportional to 13,330.86, 20,001.15 and 7,091.43 is: 10,639.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.86 : 20,001.15 = 7,091.43 : x
  2. Step 2: Convert to fraction form
    13,330.86/20,001.15 = 7,091.43/x
  3. Step 3: Cross multiply
    13,330.86x = 20,001.15 × 7,091.43
  4. Step 4: Simplify right side
    13,330.86x = 141,836,755.14
  5. Step 5: Solve for x
    x = 141,836,755.14/13,330.86
  6. Step 6: Final answer
    x = 10,639.73

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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.