Home / 13,185.16-18,194.75-7,216.94

Finding the Fourth Proportional to 13,185.16, 18,194.75 and 7,216.94

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Solution

The fourth proportional to 13,185.16, 18,194.75 and 7,216.94 is: 9,958.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.16 : 18,194.75 = 7,216.94 : x
  2. Step 2: Convert to fraction form
    13,185.16/18,194.75 = 7,216.94/x
  3. Step 3: Cross multiply
    13,185.16x = 18,194.75 × 7,216.94
  4. Step 4: Simplify right side
    13,185.16x = 131,310,419.07
  5. Step 5: Solve for x
    x = 131,310,419.07/13,185.16
  6. Step 6: Final answer
    x = 9,958.96

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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.