Home / 12,210.08-16,849.84-6,620.96

Finding the Fourth Proportional to 12,210.08, 16,849.84 and 6,620.96

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Solution

The fourth proportional to 12,210.08, 16,849.84 and 6,620.96 is: 9,136.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.08 : 16,849.84 = 6,620.96 : x
  2. Step 2: Convert to fraction form
    12,210.08/16,849.84 = 6,620.96/x
  3. Step 3: Cross multiply
    12,210.08x = 16,849.84 × 6,620.96
  4. Step 4: Simplify right side
    12,210.08x = 111,562,116.65
  5. Step 5: Solve for x
    x = 111,562,116.65/12,210.08
  6. Step 6: Final answer
    x = 9,136.89

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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.