Home / 7,480.36-11,220.54-4,188.52

Finding the Fourth Proportional to 7,480.36, 11,220.54 and 4,188.52

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Solution

The fourth proportional to 7,480.36, 11,220.54 and 4,188.52 is: 6,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.36 : 11,220.54 = 4,188.52 : x
  2. Step 2: Convert to fraction form
    7,480.36/11,220.54 = 4,188.52/x
  3. Step 3: Cross multiply
    7,480.36x = 11,220.54 × 4,188.52
  4. Step 4: Simplify right side
    7,480.36x = 46,997,456.20
  5. Step 5: Solve for x
    x = 46,997,456.20/7,480.36
  6. Step 6: Final answer
    x = 6,282.78

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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.