Home / 13,490.87-20,233.85-3,627.84

Finding the Fourth Proportional to 13,490.87, 20,233.85 and 3,627.84

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Solution

The fourth proportional to 13,490.87, 20,233.85 and 3,627.84 is: 5,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.87 : 20,233.85 = 3,627.84 : x
  2. Step 2: Convert to fraction form
    13,490.87/20,233.85 = 3,627.84/x
  3. Step 3: Cross multiply
    13,490.87x = 20,233.85 × 3,627.84
  4. Step 4: Simplify right side
    13,490.87x = 73,405,152.24
  5. Step 5: Solve for x
    x = 73,405,152.24/13,490.87
  6. Step 6: Final answer
    x = 5,441.10

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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.