Home / 13,439.22-20,152.29-4,077.54

Finding the Fourth Proportional to 13,439.22, 20,152.29 and 4,077.54

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Solution

The fourth proportional to 13,439.22, 20,152.29 and 4,077.54 is: 6,114.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.22 : 20,152.29 = 4,077.54 : x
  2. Step 2: Convert to fraction form
    13,439.22/20,152.29 = 4,077.54/x
  3. Step 3: Cross multiply
    13,439.22x = 20,152.29 × 4,077.54
  4. Step 4: Simplify right side
    13,439.22x = 82,171,783.86
  5. Step 5: Solve for x
    x = 82,171,783.86/13,439.22
  6. Step 6: Final answer
    x = 6,114.33

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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.