Home / 19,708.86-27,198.63-11,325.90

Finding the Fourth Proportional to 19,708.86, 27,198.63 and 11,325.90

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Solution

The fourth proportional to 19,708.86, 27,198.63 and 11,325.90 is: 15,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.86 : 27,198.63 = 11,325.90 : x
  2. Step 2: Convert to fraction form
    19,708.86/27,198.63 = 11,325.90/x
  3. Step 3: Cross multiply
    19,708.86x = 27,198.63 × 11,325.90
  4. Step 4: Simplify right side
    19,708.86x = 308,048,963.52
  5. Step 5: Solve for x
    x = 308,048,963.52/19,708.86
  6. Step 6: Final answer
    x = 15,629.97

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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.