Home / 12,802.80-19,201.77-4,480.86

Finding the Fourth Proportional to 12,802.80, 19,201.77 and 4,480.86

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Solution

The fourth proportional to 12,802.80, 19,201.77 and 4,480.86 is: 6,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,802.80 : 19,201.77 = 4,480.86 : x
  2. Step 2: Convert to fraction form
    12,802.80/19,201.77 = 4,480.86/x
  3. Step 3: Cross multiply
    12,802.80x = 19,201.77 × 4,480.86
  4. Step 4: Simplify right side
    12,802.80x = 86,040,443.12
  5. Step 5: Solve for x
    x = 86,040,443.12/12,802.80
  6. Step 6: Final answer
    x = 6,720.44

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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.