Home / 14,145.33-21,221.04-4,285.38

Finding the Fourth Proportional to 14,145.33, 21,221.04 and 4,285.38

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Solution

The fourth proportional to 14,145.33, 21,221.04 and 4,285.38 is: 6,428.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.33 : 21,221.04 = 4,285.38 : x
  2. Step 2: Convert to fraction form
    14,145.33/21,221.04 = 4,285.38/x
  3. Step 3: Cross multiply
    14,145.33x = 21,221.04 × 4,285.38
  4. Step 4: Simplify right side
    14,145.33x = 90,940,232.25
  5. Step 5: Solve for x
    x = 90,940,232.25/14,145.33
  6. Step 6: Final answer
    x = 6,428.99

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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.