Home / 13,388.38-20,083.80-3,527.71

Finding the Fourth Proportional to 13,388.38, 20,083.80 and 3,527.71

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Solution

The fourth proportional to 13,388.38, 20,083.80 and 3,527.71 is: 5,291.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.38 : 20,083.80 = 3,527.71 : x
  2. Step 2: Convert to fraction form
    13,388.38/20,083.80 = 3,527.71/x
  3. Step 3: Cross multiply
    13,388.38x = 20,083.80 × 3,527.71
  4. Step 4: Simplify right side
    13,388.38x = 70,849,721.68
  5. Step 5: Solve for x
    x = 70,849,721.68/13,388.38
  6. Step 6: Final answer
    x = 5,291.88

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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.