Home / 14,028.21-21,046.93-5,145.23

Finding the Fourth Proportional to 14,028.21, 21,046.93 and 5,145.23

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Solution

The fourth proportional to 14,028.21, 21,046.93 and 5,145.23 is: 7,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.21 : 21,046.93 = 5,145.23 : x
  2. Step 2: Convert to fraction form
    14,028.21/21,046.93 = 5,145.23/x
  3. Step 3: Cross multiply
    14,028.21x = 21,046.93 × 5,145.23
  4. Step 4: Simplify right side
    14,028.21x = 108,291,295.64
  5. Step 5: Solve for x
    x = 108,291,295.64/14,028.21
  6. Step 6: Final answer
    x = 7,719.54

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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.