Home / 13,475.10-20,211.24-3,615.39

Finding the Fourth Proportional to 13,475.10, 20,211.24 and 3,615.39

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Solution

The fourth proportional to 13,475.10, 20,211.24 and 3,615.39 is: 5,422.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.10 : 20,211.24 = 3,615.39 : x
  2. Step 2: Convert to fraction form
    13,475.10/20,211.24 = 3,615.39/x
  3. Step 3: Cross multiply
    13,475.10x = 20,211.24 × 3,615.39
  4. Step 4: Simplify right side
    13,475.10x = 73,071,514.98
  5. Step 5: Solve for x
    x = 73,071,514.98/13,475.10
  6. Step 6: Final answer
    x = 5,422.71

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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.