Home / 15,379.07-21,224.68-9,414.68

Finding the Fourth Proportional to 15,379.07, 21,224.68 and 9,414.68

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Solution

The fourth proportional to 15,379.07, 21,224.68 and 9,414.68 is: 12,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,379.07 : 21,224.68 = 9,414.68 : x
  2. Step 2: Convert to fraction form
    15,379.07/21,224.68 = 9,414.68/x
  3. Step 3: Cross multiply
    15,379.07x = 21,224.68 × 9,414.68
  4. Step 4: Simplify right side
    15,379.07x = 199,823,440.64
  5. Step 5: Solve for x
    x = 199,823,440.64/15,379.07
  6. Step 6: Final answer
    x = 12,993.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.