Home / 13,572.52-20,451.24-11,161.35

Finding the Fourth Proportional to 13,572.52, 20,451.24 and 11,161.35

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Solution

The fourth proportional to 13,572.52, 20,451.24 and 11,161.35 is: 16,818.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.52 : 20,451.24 = 11,161.35 : x
  2. Step 2: Convert to fraction form
    13,572.52/20,451.24 = 11,161.35/x
  3. Step 3: Cross multiply
    13,572.52x = 20,451.24 × 11,161.35
  4. Step 4: Simplify right side
    13,572.52x = 228,263,447.57
  5. Step 5: Solve for x
    x = 228,263,447.57/13,572.52
  6. Step 6: Final answer
    x = 16,818.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.