Home / 12,802.08-19,201.60-3,442.80

Finding the Fourth Proportional to 12,802.08, 19,201.60 and 3,442.80

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Solution

The fourth proportional to 12,802.08, 19,201.60 and 3,442.80 is: 5,163.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,802.08 : 19,201.60 = 3,442.80 : x
  2. Step 2: Convert to fraction form
    12,802.08/19,201.60 = 3,442.80/x
  3. Step 3: Cross multiply
    12,802.08x = 19,201.60 × 3,442.80
  4. Step 4: Simplify right side
    12,802.08x = 66,107,268.48
  5. Step 5: Solve for x
    x = 66,107,268.48/12,802.08
  6. Step 6: Final answer
    x = 5,163.79

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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.