Home / 13,747.58-20,622.44-3,886.70

Finding the Fourth Proportional to 13,747.58, 20,622.44 and 3,886.70

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Solution

The fourth proportional to 13,747.58, 20,622.44 and 3,886.70 is: 5,830.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.58 : 20,622.44 = 3,886.70 : x
  2. Step 2: Convert to fraction form
    13,747.58/20,622.44 = 3,886.70/x
  3. Step 3: Cross multiply
    13,747.58x = 20,622.44 × 3,886.70
  4. Step 4: Simplify right side
    13,747.58x = 80,153,144.15
  5. Step 5: Solve for x
    x = 80,153,144.15/13,747.58
  6. Step 6: Final answer
    x = 5,830.35

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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.