Home / 6,621.06-9,137.02-3,968.47

Finding the Fourth Proportional to 6,621.06, 9,137.02 and 3,968.47

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Solution

The fourth proportional to 6,621.06, 9,137.02 and 3,968.47 is: 5,476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.06 : 9,137.02 = 3,968.47 : x
  2. Step 2: Convert to fraction form
    6,621.06/9,137.02 = 3,968.47/x
  3. Step 3: Cross multiply
    6,621.06x = 9,137.02 × 3,968.47
  4. Step 4: Simplify right side
    6,621.06x = 36,259,989.76
  5. Step 5: Solve for x
    x = 36,259,989.76/6,621.06
  6. Step 6: Final answer
    x = 5,476.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.