Home / 13,009.86-19,519.20-4,126.65

Finding the Fourth Proportional to 13,009.86, 19,519.20 and 4,126.65

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Solution

The fourth proportional to 13,009.86, 19,519.20 and 4,126.65 is: 6,191.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.86 : 19,519.20 = 4,126.65 : x
  2. Step 2: Convert to fraction form
    13,009.86/19,519.20 = 4,126.65/x
  3. Step 3: Cross multiply
    13,009.86x = 19,519.20 × 4,126.65
  4. Step 4: Simplify right side
    13,009.86x = 80,548,906.68
  5. Step 5: Solve for x
    x = 80,548,906.68/13,009.86
  6. Step 6: Final answer
    x = 6,191.37

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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.