Home / 13,911.36-19,197.42-8,604.78

Finding the Fourth Proportional to 13,911.36, 19,197.42 and 8,604.78

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Solution

The fourth proportional to 13,911.36, 19,197.42 and 8,604.78 is: 11,874.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.36 : 19,197.42 = 8,604.78 : x
  2. Step 2: Convert to fraction form
    13,911.36/19,197.42 = 8,604.78/x
  3. Step 3: Cross multiply
    13,911.36x = 19,197.42 × 8,604.78
  4. Step 4: Simplify right side
    13,911.36x = 165,189,575.67
  5. Step 5: Solve for x
    x = 165,189,575.67/13,911.36
  6. Step 6: Final answer
    x = 11,874.44

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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.