Home / 13,625.34-20,431.32-6,131.22

Finding the Fourth Proportional to 13,625.34, 20,431.32 and 6,131.22

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Solution

The fourth proportional to 13,625.34, 20,431.32 and 6,131.22 is: 9,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.34 : 20,431.32 = 6,131.22 : x
  2. Step 2: Convert to fraction form
    13,625.34/20,431.32 = 6,131.22/x
  3. Step 3: Cross multiply
    13,625.34x = 20,431.32 × 6,131.22
  4. Step 4: Simplify right side
    13,625.34x = 125,268,917.81
  5. Step 5: Solve for x
    x = 125,268,917.81/13,625.34
  6. Step 6: Final answer
    x = 9,193.82

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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.