Home / 13,767.18-19,008.35-12,161.56

Finding the Fourth Proportional to 13,767.18, 19,008.35 and 12,161.56

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Solution

The fourth proportional to 13,767.18, 19,008.35 and 12,161.56 is: 16,791.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.18 : 19,008.35 = 12,161.56 : x
  2. Step 2: Convert to fraction form
    13,767.18/19,008.35 = 12,161.56/x
  3. Step 3: Cross multiply
    13,767.18x = 19,008.35 × 12,161.56
  4. Step 4: Simplify right side
    13,767.18x = 231,171,230.35
  5. Step 5: Solve for x
    x = 231,171,230.35/13,767.18
  6. Step 6: Final answer
    x = 16,791.47

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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.