Home / 12,148.96-18,225.24-3,829.72

Finding the Fourth Proportional to 12,148.96, 18,225.24 and 3,829.72

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Solution

The fourth proportional to 12,148.96, 18,225.24 and 3,829.72 is: 5,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.96 : 18,225.24 = 3,829.72 : x
  2. Step 2: Convert to fraction form
    12,148.96/18,225.24 = 3,829.72/x
  3. Step 3: Cross multiply
    12,148.96x = 18,225.24 × 3,829.72
  4. Step 4: Simplify right side
    12,148.96x = 69,797,566.13
  5. Step 5: Solve for x
    x = 69,797,566.13/12,148.96
  6. Step 6: Final answer
    x = 5,745.15

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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.