Home / 12,782.22-19,083.68-10,814.46

Finding the Fourth Proportional to 12,782.22, 19,083.68 and 10,814.46

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Solution

The fourth proportional to 12,782.22, 19,083.68 and 10,814.46 is: 16,145.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782.22 : 19,083.68 = 10,814.46 : x
  2. Step 2: Convert to fraction form
    12,782.22/19,083.68 = 10,814.46/x
  3. Step 3: Cross multiply
    12,782.22x = 19,083.68 × 10,814.46
  4. Step 4: Simplify right side
    12,782.22x = 206,379,639.94
  5. Step 5: Solve for x
    x = 206,379,639.94/12,782.22
  6. Step 6: Final answer
    x = 16,145.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.