Home / 19,121.47-26,384.54-11,950.54

Finding the Fourth Proportional to 19,121.47, 26,384.54 and 11,950.54

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Solution

The fourth proportional to 19,121.47, 26,384.54 and 11,950.54 is: 16,489.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.47 : 26,384.54 = 11,950.54 : x
  2. Step 2: Convert to fraction form
    19,121.47/26,384.54 = 11,950.54/x
  3. Step 3: Cross multiply
    19,121.47x = 26,384.54 × 11,950.54
  4. Step 4: Simplify right side
    19,121.47x = 315,309,374.94
  5. Step 5: Solve for x
    x = 315,309,374.94/19,121.47
  6. Step 6: Final answer
    x = 16,489.81

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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.