Home / 13,568.81-20,351.64-3,708.89

Finding the Fourth Proportional to 13,568.81, 20,351.64 and 3,708.89

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Solution

The fourth proportional to 13,568.81, 20,351.64 and 3,708.89 is: 5,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.81 : 20,351.64 = 3,708.89 : x
  2. Step 2: Convert to fraction form
    13,568.81/20,351.64 = 3,708.89/x
  3. Step 3: Cross multiply
    13,568.81x = 20,351.64 × 3,708.89
  4. Step 4: Simplify right side
    13,568.81x = 75,481,892.32
  5. Step 5: Solve for x
    x = 75,481,892.32/13,568.81
  6. Step 6: Final answer
    x = 5,562.90

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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.