Home / 19,405.24-26,778.46-11,447.80

Finding the Fourth Proportional to 19,405.24, 26,778.46 and 11,447.80

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Solution

The fourth proportional to 19,405.24, 26,778.46 and 11,447.80 is: 15,797.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.24 : 26,778.46 = 11,447.80 : x
  2. Step 2: Convert to fraction form
    19,405.24/26,778.46 = 11,447.80/x
  3. Step 3: Cross multiply
    19,405.24x = 26,778.46 × 11,447.80
  4. Step 4: Simplify right side
    19,405.24x = 306,554,454.39
  5. Step 5: Solve for x
    x = 306,554,454.39/19,405.24
  6. Step 6: Final answer
    x = 15,797.51

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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.