Home / 13,327.74-19,977.03-8,399.70

Finding the Fourth Proportional to 13,327.74, 19,977.03 and 8,399.70

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Solution

The fourth proportional to 13,327.74, 19,977.03 and 8,399.70 is: 12,590.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.74 : 19,977.03 = 8,399.70 : x
  2. Step 2: Convert to fraction form
    13,327.74/19,977.03 = 8,399.70/x
  3. Step 3: Cross multiply
    13,327.74x = 19,977.03 × 8,399.70
  4. Step 4: Simplify right side
    13,327.74x = 167,801,058.89
  5. Step 5: Solve for x
    x = 167,801,058.89/13,327.74
  6. Step 6: Final answer
    x = 12,590.36

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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.