Home / 12,480.83-18,720.88-5,083.46

Finding the Fourth Proportional to 12,480.83, 18,720.88 and 5,083.46

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Solution

The fourth proportional to 12,480.83, 18,720.88 and 5,083.46 is: 7,625.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.83 : 18,720.88 = 5,083.46 : x
  2. Step 2: Convert to fraction form
    12,480.83/18,720.88 = 5,083.46/x
  3. Step 3: Cross multiply
    12,480.83x = 18,720.88 × 5,083.46
  4. Step 4: Simplify right side
    12,480.83x = 95,166,738.33
  5. Step 5: Solve for x
    x = 95,166,738.33/12,480.83
  6. Step 6: Final answer
    x = 7,625.04

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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.