Home / 13,190.34-19,767.68-5,394.90

Finding the Fourth Proportional to 13,190.34, 19,767.68 and 5,394.90

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Solution

The fourth proportional to 13,190.34, 19,767.68 and 5,394.90 is: 8,085.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.34 : 19,767.68 = 5,394.90 : x
  2. Step 2: Convert to fraction form
    13,190.34/19,767.68 = 5,394.90/x
  3. Step 3: Cross multiply
    13,190.34x = 19,767.68 × 5,394.90
  4. Step 4: Simplify right side
    13,190.34x = 106,644,656.83
  5. Step 5: Solve for x
    x = 106,644,656.83/13,190.34
  6. Step 6: Final answer
    x = 8,085.06

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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.