Home / 16,218.11-22,361.10-13,336.77

Finding the Fourth Proportional to 16,218.11, 22,361.10 and 13,336.77

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Solution

The fourth proportional to 16,218.11, 22,361.10 and 13,336.77 is: 18,388.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.11 : 22,361.10 = 13,336.77 : x
  2. Step 2: Convert to fraction form
    16,218.11/22,361.10 = 13,336.77/x
  3. Step 3: Cross multiply
    16,218.11x = 22,361.10 × 13,336.77
  4. Step 4: Simplify right side
    16,218.11x = 298,224,841.76
  5. Step 5: Solve for x
    x = 298,224,841.76/16,218.11
  6. Step 6: Final answer
    x = 18,388.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.