Home / 13,566.39-20,346.31-3,705.72

Finding the Fourth Proportional to 13,566.39, 20,346.31 and 3,705.72

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Solution

The fourth proportional to 13,566.39, 20,346.31 and 3,705.72 is: 5,557.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.39 : 20,346.31 = 3,705.72 : x
  2. Step 2: Convert to fraction form
    13,566.39/20,346.31 = 3,705.72/x
  3. Step 3: Cross multiply
    13,566.39x = 20,346.31 × 3,705.72
  4. Step 4: Simplify right side
    13,566.39x = 75,397,709.36
  5. Step 5: Solve for x
    x = 75,397,709.36/13,566.39
  6. Step 6: Final answer
    x = 5,557.68

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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.