Home / 13,546.73-20,321.10-3,686.09

Finding the Fourth Proportional to 13,546.73, 20,321.10 and 3,686.09

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Solution

The fourth proportional to 13,546.73, 20,321.10 and 3,686.09 is: 5,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.73 : 20,321.10 = 3,686.09 : x
  2. Step 2: Convert to fraction form
    13,546.73/20,321.10 = 3,686.09/x
  3. Step 3: Cross multiply
    13,546.73x = 20,321.10 × 3,686.09
  4. Step 4: Simplify right side
    13,546.73x = 74,905,301.89
  5. Step 5: Solve for x
    x = 74,905,301.89/13,546.73
  6. Step 6: Final answer
    x = 5,529.40

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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.