Home / 13,954.05-19,256.04-8,648.78

Finding the Fourth Proportional to 13,954.05, 19,256.04 and 8,648.78

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Solution

The fourth proportional to 13,954.05, 19,256.04 and 8,648.78 is: 11,934.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.05 : 19,256.04 = 8,648.78 : x
  2. Step 2: Convert to fraction form
    13,954.05/19,256.04 = 8,648.78/x
  3. Step 3: Cross multiply
    13,954.05x = 19,256.04 × 8,648.78
  4. Step 4: Simplify right side
    13,954.05x = 166,541,157.35
  5. Step 5: Solve for x
    x = 166,541,157.35/13,954.05
  6. Step 6: Final answer
    x = 11,934.97

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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.