Home / 13,574.22-20,347.85-6,445.96

Finding the Fourth Proportional to 13,574.22, 20,347.85 and 6,445.96

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Solution

The fourth proportional to 13,574.22, 20,347.85 and 6,445.96 is: 9,662.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.22 : 20,347.85 = 6,445.96 : x
  2. Step 2: Convert to fraction form
    13,574.22/20,347.85 = 6,445.96/x
  3. Step 3: Cross multiply
    13,574.22x = 20,347.85 × 6,445.96
  4. Step 4: Simplify right side
    13,574.22x = 131,161,427.19
  5. Step 5: Solve for x
    x = 131,161,427.19/13,574.22
  6. Step 6: Final answer
    x = 9,662.54

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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.