Home / 11,814.58-16,306.49-6,782.21

Finding the Fourth Proportional to 11,814.58, 16,306.49 and 6,782.21

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Solution

The fourth proportional to 11,814.58, 16,306.49 and 6,782.21 is: 9,360.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.58 : 16,306.49 = 6,782.21 : x
  2. Step 2: Convert to fraction form
    11,814.58/16,306.49 = 6,782.21/x
  3. Step 3: Cross multiply
    11,814.58x = 16,306.49 × 6,782.21
  4. Step 4: Simplify right side
    11,814.58x = 110,594,039.54
  5. Step 5: Solve for x
    x = 110,594,039.54/11,814.58
  6. Step 6: Final answer
    x = 9,360.81

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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.