Home / 13,379.44-20,070.24-4,145.44

Finding the Fourth Proportional to 13,379.44, 20,070.24 and 4,145.44

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Solution

The fourth proportional to 13,379.44, 20,070.24 and 4,145.44 is: 6,218.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.44 : 20,070.24 = 4,145.44 : x
  2. Step 2: Convert to fraction form
    13,379.44/20,070.24 = 4,145.44/x
  3. Step 3: Cross multiply
    13,379.44x = 20,070.24 × 4,145.44
  4. Step 4: Simplify right side
    13,379.44x = 83,199,975.71
  5. Step 5: Solve for x
    x = 83,199,975.71/13,379.44
  6. Step 6: Final answer
    x = 6,218.49

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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.