Home / 13,388.42-20,083.61-3,527.63

Finding the Fourth Proportional to 13,388.42, 20,083.61 and 3,527.63

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Solution

The fourth proportional to 13,388.42, 20,083.61 and 3,527.63 is: 5,291.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.42 : 20,083.61 = 3,527.63 : x
  2. Step 2: Convert to fraction form
    13,388.42/20,083.61 = 3,527.63/x
  3. Step 3: Cross multiply
    13,388.42x = 20,083.61 × 3,527.63
  4. Step 4: Simplify right side
    13,388.42x = 70,847,427.09
  5. Step 5: Solve for x
    x = 70,847,427.09/13,388.42
  6. Step 6: Final answer
    x = 5,291.70

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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.