Home / 12,201.09-18,302.76-3,435.99

Finding the Fourth Proportional to 12,201.09, 18,302.76 and 3,435.99

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Solution

The fourth proportional to 12,201.09, 18,302.76 and 3,435.99 is: 5,154.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.09 : 18,302.76 = 3,435.99 : x
  2. Step 2: Convert to fraction form
    12,201.09/18,302.76 = 3,435.99/x
  3. Step 3: Cross multiply
    12,201.09x = 18,302.76 × 3,435.99
  4. Step 4: Simplify right side
    12,201.09x = 62,888,100.33
  5. Step 5: Solve for x
    x = 62,888,100.33/12,201.09
  6. Step 6: Final answer
    x = 5,154.30

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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.