Home / 12,900.67-19,351.07-5,500.41

Finding the Fourth Proportional to 12,900.67, 19,351.07 and 5,500.41

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Solution

The fourth proportional to 12,900.67, 19,351.07 and 5,500.41 is: 8,250.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.67 : 19,351.07 = 5,500.41 : x
  2. Step 2: Convert to fraction form
    12,900.67/19,351.07 = 5,500.41/x
  3. Step 3: Cross multiply
    12,900.67x = 19,351.07 × 5,500.41
  4. Step 4: Simplify right side
    12,900.67x = 106,438,739.50
  5. Step 5: Solve for x
    x = 106,438,739.50/12,900.67
  6. Step 6: Final answer
    x = 8,250.64

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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.