Home / 12,083.36-18,121.74-3,316.20

Finding the Fourth Proportional to 12,083.36, 18,121.74 and 3,316.20

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Solution

The fourth proportional to 12,083.36, 18,121.74 and 3,316.20 is: 4,973.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.36 : 18,121.74 = 3,316.20 : x
  2. Step 2: Convert to fraction form
    12,083.36/18,121.74 = 3,316.20/x
  3. Step 3: Cross multiply
    12,083.36x = 18,121.74 × 3,316.20
  4. Step 4: Simplify right side
    12,083.36x = 60,095,314.19
  5. Step 5: Solve for x
    x = 60,095,314.19/12,083.36
  6. Step 6: Final answer
    x = 4,973.39

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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.