Home / 13,399.24-20,101.18-4,513.72

Finding the Fourth Proportional to 13,399.24, 20,101.18 and 4,513.72

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Solution

The fourth proportional to 13,399.24, 20,101.18 and 4,513.72 is: 6,771.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.24 : 20,101.18 = 4,513.72 : x
  2. Step 2: Convert to fraction form
    13,399.24/20,101.18 = 4,513.72/x
  3. Step 3: Cross multiply
    13,399.24x = 20,101.18 × 4,513.72
  4. Step 4: Simplify right side
    13,399.24x = 90,731,098.19
  5. Step 5: Solve for x
    x = 90,731,098.19/13,399.24
  6. Step 6: Final answer
    x = 6,771.36

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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.