Home / 19,216.78-26,519.20-10,718.69

Finding the Fourth Proportional to 19,216.78, 26,519.20 and 10,718.69

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Solution

The fourth proportional to 19,216.78, 26,519.20 and 10,718.69 is: 14,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,216.78 : 26,519.20 = 10,718.69 : x
  2. Step 2: Convert to fraction form
    19,216.78/26,519.20 = 10,718.69/x
  3. Step 3: Cross multiply
    19,216.78x = 26,519.20 × 10,718.69
  4. Step 4: Simplify right side
    19,216.78x = 284,251,083.85
  5. Step 5: Solve for x
    x = 284,251,083.85/19,216.78
  6. Step 6: Final answer
    x = 14,791.82

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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.