Home / 13,824.34-20,722.22-6,422.76

Finding the Fourth Proportional to 13,824.34, 20,722.22 and 6,422.76

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Solution

The fourth proportional to 13,824.34, 20,722.22 and 6,422.76 is: 9,627.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.34 : 20,722.22 = 6,422.76 : x
  2. Step 2: Convert to fraction form
    13,824.34/20,722.22 = 6,422.76/x
  3. Step 3: Cross multiply
    13,824.34x = 20,722.22 × 6,422.76
  4. Step 4: Simplify right side
    13,824.34x = 133,093,845.73
  5. Step 5: Solve for x
    x = 133,093,845.73/13,824.34
  6. Step 6: Final answer
    x = 9,627.50

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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.