Home / 13,566.21-20,345.93-3,705.54

Finding the Fourth Proportional to 13,566.21, 20,345.93 and 3,705.54

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Solution

The fourth proportional to 13,566.21, 20,345.93 and 3,705.54 is: 5,557.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.21 : 20,345.93 = 3,705.54 : x
  2. Step 2: Convert to fraction form
    13,566.21/20,345.93 = 3,705.54/x
  3. Step 3: Cross multiply
    13,566.21x = 20,345.93 × 3,705.54
  4. Step 4: Simplify right side
    13,566.21x = 75,392,657.45
  5. Step 5: Solve for x
    x = 75,392,657.45/13,566.21
  6. Step 6: Final answer
    x = 5,557.39

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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.