Home / 14,129.23-21,193.69-3,455.68

Finding the Fourth Proportional to 14,129.23, 21,193.69 and 3,455.68

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Solution

The fourth proportional to 14,129.23, 21,193.69 and 3,455.68 is: 5,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.23 : 21,193.69 = 3,455.68 : x
  2. Step 2: Convert to fraction form
    14,129.23/21,193.69 = 3,455.68/x
  3. Step 3: Cross multiply
    14,129.23x = 21,193.69 × 3,455.68
  4. Step 4: Simplify right side
    14,129.23x = 73,238,610.66
  5. Step 5: Solve for x
    x = 73,238,610.66/14,129.23
  6. Step 6: Final answer
    x = 5,183.48

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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.