Home / 12,650.23-18,973.18-3,643.71

Finding the Fourth Proportional to 12,650.23, 18,973.18 and 3,643.71

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Solution

The fourth proportional to 12,650.23, 18,973.18 and 3,643.71 is: 5,464.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.23 : 18,973.18 = 3,643.71 : x
  2. Step 2: Convert to fraction form
    12,650.23/18,973.18 = 3,643.71/x
  3. Step 3: Cross multiply
    12,650.23x = 18,973.18 × 3,643.71
  4. Step 4: Simplify right side
    12,650.23x = 69,132,765.70
  5. Step 5: Solve for x
    x = 69,132,765.70/12,650.23
  6. Step 6: Final answer
    x = 5,464.94

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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.