Home / 8,914.83-12,289.35-6,786.65

Finding the Fourth Proportional to 8,914.83, 12,289.35 and 6,786.65

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Solution

The fourth proportional to 8,914.83, 12,289.35 and 6,786.65 is: 9,355.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.83 : 12,289.35 = 6,786.65 : x
  2. Step 2: Convert to fraction form
    8,914.83/12,289.35 = 6,786.65/x
  3. Step 3: Cross multiply
    8,914.83x = 12,289.35 × 6,786.65
  4. Step 4: Simplify right side
    8,914.83x = 83,403,455.73
  5. Step 5: Solve for x
    x = 83,403,455.73/8,914.83
  6. Step 6: Final answer
    x = 9,355.59

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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.