Home / 9,429.99-14,142.68-3,425.09

Finding the Fourth Proportional to 9,429.99, 14,142.68 and 3,425.09

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Solution

The fourth proportional to 9,429.99, 14,142.68 and 3,425.09 is: 5,136.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.99 : 14,142.68 = 3,425.09 : x
  2. Step 2: Convert to fraction form
    9,429.99/14,142.68 = 3,425.09/x
  3. Step 3: Cross multiply
    9,429.99x = 14,142.68 × 3,425.09
  4. Step 4: Simplify right side
    9,429.99x = 48,439,867.21
  5. Step 5: Solve for x
    x = 48,439,867.21/9,429.99
  6. Step 6: Final answer
    x = 5,136.79

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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.