Home / 13,637.25-20,425.89-11,270.43

Finding the Fourth Proportional to 13,637.25, 20,425.89 and 11,270.43

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Solution

The fourth proportional to 13,637.25, 20,425.89 and 11,270.43 is: 16,880.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.25 : 20,425.89 = 11,270.43 : x
  2. Step 2: Convert to fraction form
    13,637.25/20,425.89 = 11,270.43/x
  3. Step 3: Cross multiply
    13,637.25x = 20,425.89 × 11,270.43
  4. Step 4: Simplify right side
    13,637.25x = 230,208,563.43
  5. Step 5: Solve for x
    x = 230,208,563.43/13,637.25
  6. Step 6: Final answer
    x = 16,880.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.