Home / 13,572.83-20,451.71-11,161.66

Finding the Fourth Proportional to 13,572.83, 20,451.71 and 11,161.66

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Solution

The fourth proportional to 13,572.83, 20,451.71 and 11,161.66 is: 16,818.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.83 : 20,451.71 = 11,161.66 : x
  2. Step 2: Convert to fraction form
    13,572.83/20,451.71 = 11,161.66/x
  3. Step 3: Cross multiply
    13,572.83x = 20,451.71 × 11,161.66
  4. Step 4: Simplify right side
    13,572.83x = 228,275,033.44
  5. Step 5: Solve for x
    x = 228,275,033.44/13,572.83
  6. Step 6: Final answer
    x = 16,818.53

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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.