Home / 13,612.22-20,414.69-3,749.16

Finding the Fourth Proportional to 13,612.22, 20,414.69 and 3,749.16

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Solution

The fourth proportional to 13,612.22, 20,414.69 and 3,749.16 is: 5,622.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.22 : 20,414.69 = 3,749.16 : x
  2. Step 2: Convert to fraction form
    13,612.22/20,414.69 = 3,749.16/x
  3. Step 3: Cross multiply
    13,612.22x = 20,414.69 × 3,749.16
  4. Step 4: Simplify right side
    13,612.22x = 76,537,818.34
  5. Step 5: Solve for x
    x = 76,537,818.34/13,612.22
  6. Step 6: Final answer
    x = 5,622.73

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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.