Home / 19,119.60-28,679.37-12,544.23

Finding the Fourth Proportional to 19,119.60, 28,679.37 and 12,544.23

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Solution

The fourth proportional to 19,119.60, 28,679.37 and 12,544.23 is: 18,816.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.60 : 28,679.37 = 12,544.23 : x
  2. Step 2: Convert to fraction form
    19,119.60/28,679.37 = 12,544.23/x
  3. Step 3: Cross multiply
    19,119.60x = 28,679.37 × 12,544.23
  4. Step 4: Simplify right side
    19,119.60x = 359,760,613.54
  5. Step 5: Solve for x
    x = 359,760,613.54/19,119.60
  6. Step 6: Final answer
    x = 18,816.33

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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.