Home / 13,174.82-19,762.12-5,378.16

Finding the Fourth Proportional to 13,174.82, 19,762.12 and 5,378.16

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Solution

The fourth proportional to 13,174.82, 19,762.12 and 5,378.16 is: 8,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.82 : 19,762.12 = 5,378.16 : x
  2. Step 2: Convert to fraction form
    13,174.82/19,762.12 = 5,378.16/x
  3. Step 3: Cross multiply
    13,174.82x = 19,762.12 × 5,378.16
  4. Step 4: Simplify right side
    13,174.82x = 106,283,829.85
  5. Step 5: Solve for x
    x = 106,283,829.85/13,174.82
  6. Step 6: Final answer
    x = 8,067.20

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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.