Home / 13,885.50-20,826.72-3,497.26

Finding the Fourth Proportional to 13,885.50, 20,826.72 and 3,497.26

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Solution

The fourth proportional to 13,885.50, 20,826.72 and 3,497.26 is: 5,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.50 : 20,826.72 = 3,497.26 : x
  2. Step 2: Convert to fraction form
    13,885.50/20,826.72 = 3,497.26/x
  3. Step 3: Cross multiply
    13,885.50x = 20,826.72 × 3,497.26
  4. Step 4: Simplify right side
    13,885.50x = 72,836,454.79
  5. Step 5: Solve for x
    x = 72,836,454.79/13,885.50
  6. Step 6: Final answer
    x = 5,245.50

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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.