Home / 12,450.06-18,675.09-3,685.74

Finding the Fourth Proportional to 12,450.06, 18,675.09 and 3,685.74

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Solution

The fourth proportional to 12,450.06, 18,675.09 and 3,685.74 is: 5,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.06 : 18,675.09 = 3,685.74 : x
  2. Step 2: Convert to fraction form
    12,450.06/18,675.09 = 3,685.74/x
  3. Step 3: Cross multiply
    12,450.06x = 18,675.09 × 3,685.74
  4. Step 4: Simplify right side
    12,450.06x = 68,831,526.22
  5. Step 5: Solve for x
    x = 68,831,526.22/12,450.06
  6. Step 6: Final answer
    x = 5,528.61

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.