Home / 7,811.02-11,716.53-1,968.09

Finding the Fourth Proportional to 7,811.02, 11,716.53 and 1,968.09

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Solution

The fourth proportional to 7,811.02, 11,716.53 and 1,968.09 is: 2,952.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.02 : 11,716.53 = 1,968.09 : x
  2. Step 2: Convert to fraction form
    7,811.02/11,716.53 = 1,968.09/x
  3. Step 3: Cross multiply
    7,811.02x = 11,716.53 × 1,968.09
  4. Step 4: Simplify right side
    7,811.02x = 23,059,185.53
  5. Step 5: Solve for x
    x = 23,059,185.53/7,811.02
  6. Step 6: Final answer
    x = 2,952.14

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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.