Home / 13,781.14-20,673.53-4,418.04

Finding the Fourth Proportional to 13,781.14, 20,673.53 and 4,418.04

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Solution

The fourth proportional to 13,781.14, 20,673.53 and 4,418.04 is: 6,627.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.14 : 20,673.53 = 4,418.04 : x
  2. Step 2: Convert to fraction form
    13,781.14/20,673.53 = 4,418.04/x
  3. Step 3: Cross multiply
    13,781.14x = 20,673.53 × 4,418.04
  4. Step 4: Simplify right side
    13,781.14x = 91,336,554.48
  5. Step 5: Solve for x
    x = 91,336,554.48/13,781.14
  6. Step 6: Final answer
    x = 6,627.65

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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.