Home / 12,571.29-18,850.46-5,174.37

Finding the Fourth Proportional to 12,571.29, 18,850.46 and 5,174.37

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Solution

The fourth proportional to 12,571.29, 18,850.46 and 5,174.37 is: 7,758.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.29 : 18,850.46 = 5,174.37 : x
  2. Step 2: Convert to fraction form
    12,571.29/18,850.46 = 5,174.37/x
  3. Step 3: Cross multiply
    12,571.29x = 18,850.46 × 5,174.37
  4. Step 4: Simplify right side
    12,571.29x = 97,539,228.84
  5. Step 5: Solve for x
    x = 97,539,228.84/12,571.29
  6. Step 6: Final answer
    x = 7,758.89

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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.