Home / 13,438.62-20,044.55-11,669.71

Finding the Fourth Proportional to 13,438.62, 20,044.55 and 11,669.71

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Solution

The fourth proportional to 13,438.62, 20,044.55 and 11,669.71 is: 17,406.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.62 : 20,044.55 = 11,669.71 : x
  2. Step 2: Convert to fraction form
    13,438.62/20,044.55 = 11,669.71/x
  3. Step 3: Cross multiply
    13,438.62x = 20,044.55 × 11,669.71
  4. Step 4: Simplify right side
    13,438.62x = 233,914,092.96
  5. Step 5: Solve for x
    x = 233,914,092.96/13,438.62
  6. Step 6: Final answer
    x = 17,406.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.