Home / 14,640.89-20,199.51-8,266.59

Finding the Fourth Proportional to 14,640.89, 20,199.51 and 8,266.59

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Solution

The fourth proportional to 14,640.89, 20,199.51 and 8,266.59 is: 11,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.89 : 20,199.51 = 8,266.59 : x
  2. Step 2: Convert to fraction form
    14,640.89/20,199.51 = 8,266.59/x
  3. Step 3: Cross multiply
    14,640.89x = 20,199.51 × 8,266.59
  4. Step 4: Simplify right side
    14,640.89x = 166,981,067.37
  5. Step 5: Solve for x
    x = 166,981,067.37/14,640.89
  6. Step 6: Final answer
    x = 11,405.12

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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.