Home / 12,608.04-18,912.24-5,211.66

Finding the Fourth Proportional to 12,608.04, 18,912.24 and 5,211.66

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Solution

The fourth proportional to 12,608.04, 18,912.24 and 5,211.66 is: 7,817.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.04 : 18,912.24 = 5,211.66 : x
  2. Step 2: Convert to fraction form
    12,608.04/18,912.24 = 5,211.66/x
  3. Step 3: Cross multiply
    12,608.04x = 18,912.24 × 5,211.66
  4. Step 4: Simplify right side
    12,608.04x = 98,564,164.72
  5. Step 5: Solve for x
    x = 98,564,164.72/12,608.04
  6. Step 6: Final answer
    x = 7,817.56

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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.