Home / 13,351.72-18,419.24-8,637.52

Finding the Fourth Proportional to 13,351.72, 18,419.24 and 8,637.52

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Solution

The fourth proportional to 13,351.72, 18,419.24 and 8,637.52 is: 11,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.72 : 18,419.24 = 8,637.52 : x
  2. Step 2: Convert to fraction form
    13,351.72/18,419.24 = 8,637.52/x
  3. Step 3: Cross multiply
    13,351.72x = 18,419.24 × 8,637.52
  4. Step 4: Simplify right side
    13,351.72x = 159,096,553.88
  5. Step 5: Solve for x
    x = 159,096,553.88/13,351.72
  6. Step 6: Final answer
    x = 11,915.81

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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.