Home / 12,212.94-18,317.40-3,448.46

Finding the Fourth Proportional to 12,212.94, 18,317.40 and 3,448.46

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Solution

The fourth proportional to 12,212.94, 18,317.40 and 3,448.46 is: 5,172.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.94 : 18,317.40 = 3,448.46 : x
  2. Step 2: Convert to fraction form
    12,212.94/18,317.40 = 3,448.46/x
  3. Step 3: Cross multiply
    12,212.94x = 18,317.40 × 3,448.46
  4. Step 4: Simplify right side
    12,212.94x = 63,166,821.20
  5. Step 5: Solve for x
    x = 63,166,821.20/12,212.94
  6. Step 6: Final answer
    x = 5,172.12

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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.