Home / 13,141.52-19,680.22-6,906.74

Finding the Fourth Proportional to 13,141.52, 19,680.22 and 6,906.74

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Solution

The fourth proportional to 13,141.52, 19,680.22 and 6,906.74 is: 10,343.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141.52 : 19,680.22 = 6,906.74 : x
  2. Step 2: Convert to fraction form
    13,141.52/19,680.22 = 6,906.74/x
  3. Step 3: Cross multiply
    13,141.52x = 19,680.22 × 6,906.74
  4. Step 4: Simplify right side
    13,141.52x = 135,926,162.68
  5. Step 5: Solve for x
    x = 135,926,162.68/13,141.52
  6. Step 6: Final answer
    x = 10,343.26

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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.