Home / 12,449.72-18,668.10-3,683.45

Finding the Fourth Proportional to 12,449.72, 18,668.10 and 3,683.45

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Solution

The fourth proportional to 12,449.72, 18,668.10 and 3,683.45 is: 5,523.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.72 : 18,668.10 = 3,683.45 : x
  2. Step 2: Convert to fraction form
    12,449.72/18,668.10 = 3,683.45/x
  3. Step 3: Cross multiply
    12,449.72x = 18,668.10 × 3,683.45
  4. Step 4: Simplify right side
    12,449.72x = 68,763,012.95
  5. Step 5: Solve for x
    x = 68,763,012.95/12,449.72
  6. Step 6: Final answer
    x = 5,523.26

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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.