Home / 15,414.21-23,121.47-5,419.23

Finding the Fourth Proportional to 15,414.21, 23,121.47 and 5,419.23

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Solution

The fourth proportional to 15,414.21, 23,121.47 and 5,419.23 is: 8,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.21 : 23,121.47 = 5,419.23 : x
  2. Step 2: Convert to fraction form
    15,414.21/23,121.47 = 5,419.23/x
  3. Step 3: Cross multiply
    15,414.21x = 23,121.47 × 5,419.23
  4. Step 4: Simplify right side
    15,414.21x = 125,300,563.87
  5. Step 5: Solve for x
    x = 125,300,563.87/15,414.21
  6. Step 6: Final answer
    x = 8,128.90

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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.