Home / 13,330.71-20,008.26-6,761.43

Finding the Fourth Proportional to 13,330.71, 20,008.26 and 6,761.43

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Solution

The fourth proportional to 13,330.71, 20,008.26 and 6,761.43 is: 10,148.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.71 : 20,008.26 = 6,761.43 : x
  2. Step 2: Convert to fraction form
    13,330.71/20,008.26 = 6,761.43/x
  3. Step 3: Cross multiply
    13,330.71x = 20,008.26 × 6,761.43
  4. Step 4: Simplify right side
    13,330.71x = 135,284,449.41
  5. Step 5: Solve for x
    x = 135,284,449.41/13,330.71
  6. Step 6: Final answer
    x = 10,148.33

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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.