Home / 13,744.16-20,641.63-8,231.39

Finding the Fourth Proportional to 13,744.16, 20,641.63 and 8,231.39

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Solution

The fourth proportional to 13,744.16, 20,641.63 and 8,231.39 is: 12,362.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.16 : 20,641.63 = 8,231.39 : x
  2. Step 2: Convert to fraction form
    13,744.16/20,641.63 = 8,231.39/x
  3. Step 3: Cross multiply
    13,744.16x = 20,641.63 × 8,231.39
  4. Step 4: Simplify right side
    13,744.16x = 169,909,203.56
  5. Step 5: Solve for x
    x = 169,909,203.56/13,744.16
  6. Step 6: Final answer
    x = 12,362.28

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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.