Home / 12,606.34-18,912.36-4,172.83

Finding the Fourth Proportional to 12,606.34, 18,912.36 and 4,172.83

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Solution

The fourth proportional to 12,606.34, 18,912.36 and 4,172.83 is: 6,260.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.34 : 18,912.36 = 4,172.83 : x
  2. Step 2: Convert to fraction form
    12,606.34/18,912.36 = 4,172.83/x
  3. Step 3: Cross multiply
    12,606.34x = 18,912.36 × 4,172.83
  4. Step 4: Simplify right side
    12,606.34x = 78,918,063.18
  5. Step 5: Solve for x
    x = 78,918,063.18/12,606.34
  6. Step 6: Final answer
    x = 6,260.19

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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.