Home / 8,939.74-13,406.41-3,394.59

Finding the Fourth Proportional to 8,939.74, 13,406.41 and 3,394.59

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Solution

The fourth proportional to 8,939.74, 13,406.41 and 3,394.59 is: 5,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.74 : 13,406.41 = 3,394.59 : x
  2. Step 2: Convert to fraction form
    8,939.74/13,406.41 = 3,394.59/x
  3. Step 3: Cross multiply
    8,939.74x = 13,406.41 × 3,394.59
  4. Step 4: Simplify right side
    8,939.74x = 45,509,265.32
  5. Step 5: Solve for x
    x = 45,509,265.32/8,939.74
  6. Step 6: Final answer
    x = 5,090.67

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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.