Home / 13,629.38-18,808.50-7,968.02

Finding the Fourth Proportional to 13,629.38, 18,808.50 and 7,968.02

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Solution

The fourth proportional to 13,629.38, 18,808.50 and 7,968.02 is: 10,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.38 : 18,808.50 = 7,968.02 : x
  2. Step 2: Convert to fraction form
    13,629.38/18,808.50 = 7,968.02/x
  3. Step 3: Cross multiply
    13,629.38x = 18,808.50 × 7,968.02
  4. Step 4: Simplify right side
    13,629.38x = 149,866,504.17
  5. Step 5: Solve for x
    x = 149,866,504.17/13,629.38
  6. Step 6: Final answer
    x = 10,995.84

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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.