Home / 18,805.06-28,208.19-5,657.54

Finding the Fourth Proportional to 18,805.06, 28,208.19 and 5,657.54

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Solution

The fourth proportional to 18,805.06, 28,208.19 and 5,657.54 is: 8,486.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805.06 : 28,208.19 = 5,657.54 : x
  2. Step 2: Convert to fraction form
    18,805.06/28,208.19 = 5,657.54/x
  3. Step 3: Cross multiply
    18,805.06x = 28,208.19 × 5,657.54
  4. Step 4: Simplify right side
    18,805.06x = 159,588,963.25
  5. Step 5: Solve for x
    x = 159,588,963.25/18,805.06
  6. Step 6: Final answer
    x = 8,486.49

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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.