Home / 12,940.07-19,409.43-4,174.99

Finding the Fourth Proportional to 12,940.07, 19,409.43 and 4,174.99

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Solution

The fourth proportional to 12,940.07, 19,409.43 and 4,174.99 is: 6,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940.07 : 19,409.43 = 4,174.99 : x
  2. Step 2: Convert to fraction form
    12,940.07/19,409.43 = 4,174.99/x
  3. Step 3: Cross multiply
    12,940.07x = 19,409.43 × 4,174.99
  4. Step 4: Simplify right side
    12,940.07x = 81,034,176.16
  5. Step 5: Solve for x
    x = 81,034,176.16/12,940.07
  6. Step 6: Final answer
    x = 6,262.27

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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.