Home / 11,968.12-16,515.21-6,662.80

Finding the Fourth Proportional to 11,968.12, 16,515.21 and 6,662.80

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Solution

The fourth proportional to 11,968.12, 16,515.21 and 6,662.80 is: 9,194.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,968.12 : 16,515.21 = 6,662.80 : x
  2. Step 2: Convert to fraction form
    11,968.12/16,515.21 = 6,662.80/x
  3. Step 3: Cross multiply
    11,968.12x = 16,515.21 × 6,662.80
  4. Step 4: Simplify right side
    11,968.12x = 110,037,541.19
  5. Step 5: Solve for x
    x = 110,037,541.19/11,968.12
  6. Step 6: Final answer
    x = 9,194.22

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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.