Home / 12,114.91-18,172.36-3,795.58

Finding the Fourth Proportional to 12,114.91, 18,172.36 and 3,795.58

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Solution

The fourth proportional to 12,114.91, 18,172.36 and 3,795.58 is: 5,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.91 : 18,172.36 = 3,795.58 : x
  2. Step 2: Convert to fraction form
    12,114.91/18,172.36 = 3,795.58/x
  3. Step 3: Cross multiply
    12,114.91x = 18,172.36 × 3,795.58
  4. Step 4: Simplify right side
    12,114.91x = 68,974,673.63
  5. Step 5: Solve for x
    x = 68,974,673.63/12,114.91
  6. Step 6: Final answer
    x = 5,693.37

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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.