Home / 13,369.20-20,010.60-12,332.40

Finding the Fourth Proportional to 13,369.20, 20,010.60 and 12,332.40

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Solution

The fourth proportional to 13,369.20, 20,010.60 and 12,332.40 is: 18,458.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.20 : 20,010.60 = 12,332.40 : x
  2. Step 2: Convert to fraction form
    13,369.20/20,010.60 = 12,332.40/x
  3. Step 3: Cross multiply
    13,369.20x = 20,010.60 × 12,332.40
  4. Step 4: Simplify right side
    13,369.20x = 246,778,723.44
  5. Step 5: Solve for x
    x = 246,778,723.44/13,369.20
  6. Step 6: Final answer
    x = 18,458.75

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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.