Home / 13,411.26-20,107.71-6,824.70

Finding the Fourth Proportional to 13,411.26, 20,107.71 and 6,824.70

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Solution

The fourth proportional to 13,411.26, 20,107.71 and 6,824.70 is: 10,232.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.26 : 20,107.71 = 6,824.70 : x
  2. Step 2: Convert to fraction form
    13,411.26/20,107.71 = 6,824.70/x
  3. Step 3: Cross multiply
    13,411.26x = 20,107.71 × 6,824.70
  4. Step 4: Simplify right side
    13,411.26x = 137,229,088.44
  5. Step 5: Solve for x
    x = 137,229,088.44/13,411.26
  6. Step 6: Final answer
    x = 10,232.38

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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.