Home / 13,738.65-20,609.81-6,344.78

Finding the Fourth Proportional to 13,738.65, 20,609.81 and 6,344.78

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Solution

The fourth proportional to 13,738.65, 20,609.81 and 6,344.78 is: 9,518.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.65 : 20,609.81 = 6,344.78 : x
  2. Step 2: Convert to fraction form
    13,738.65/20,609.81 = 6,344.78/x
  3. Step 3: Cross multiply
    13,738.65x = 20,609.81 × 6,344.78
  4. Step 4: Simplify right side
    13,738.65x = 130,764,575.52
  5. Step 5: Solve for x
    x = 130,764,575.52/13,738.65
  6. Step 6: Final answer
    x = 9,518.01

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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.