Home / 13,185.50-18,195.29-7,216.01

Finding the Fourth Proportional to 13,185.50, 18,195.29 and 7,216.01

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Solution

The fourth proportional to 13,185.50, 18,195.29 and 7,216.01 is: 9,957.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.50 : 18,195.29 = 7,216.01 : x
  2. Step 2: Convert to fraction form
    13,185.50/18,195.29 = 7,216.01/x
  3. Step 3: Cross multiply
    13,185.50x = 18,195.29 × 7,216.01
  4. Step 4: Simplify right side
    13,185.50x = 131,297,431.06
  5. Step 5: Solve for x
    x = 131,297,431.06/13,185.50
  6. Step 6: Final answer
    x = 9,957.71

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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.