Home / 12,224.75-16,870.20-6,635.75

Finding the Fourth Proportional to 12,224.75, 16,870.20 and 6,635.75

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Solution

The fourth proportional to 12,224.75, 16,870.20 and 6,635.75 is: 9,157.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.75 : 16,870.20 = 6,635.75 : x
  2. Step 2: Convert to fraction form
    12,224.75/16,870.20 = 6,635.75/x
  3. Step 3: Cross multiply
    12,224.75x = 16,870.20 × 6,635.75
  4. Step 4: Simplify right side
    12,224.75x = 111,946,429.65
  5. Step 5: Solve for x
    x = 111,946,429.65/12,224.75
  6. Step 6: Final answer
    x = 9,157.36

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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.