Home / 13,441.55-20,120.70-12,293.37

Finding the Fourth Proportional to 13,441.55, 20,120.70 and 12,293.37

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Solution

The fourth proportional to 13,441.55, 20,120.70 and 12,293.37 is: 18,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.55 : 20,120.70 = 12,293.37 : x
  2. Step 2: Convert to fraction form
    13,441.55/20,120.70 = 12,293.37/x
  3. Step 3: Cross multiply
    13,441.55x = 20,120.70 × 12,293.37
  4. Step 4: Simplify right side
    13,441.55x = 247,351,255.86
  5. Step 5: Solve for x
    x = 247,351,255.86/13,441.55
  6. Step 6: Final answer
    x = 18,402.00

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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.