Home / 13,954.77-20,890.58-13,456.55

Finding the Fourth Proportional to 13,954.77, 20,890.58 and 13,456.55

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Solution

The fourth proportional to 13,954.77, 20,890.58 and 13,456.55 is: 20,144.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.77 : 20,890.58 = 13,456.55 : x
  2. Step 2: Convert to fraction form
    13,954.77/20,890.58 = 13,456.55/x
  3. Step 3: Cross multiply
    13,954.77x = 20,890.58 × 13,456.55
  4. Step 4: Simplify right side
    13,954.77x = 281,115,119.24
  5. Step 5: Solve for x
    x = 281,115,119.24/13,954.77
  6. Step 6: Final answer
    x = 20,144.73

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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.