Home / 13,194.70-18,208.19-7,226.42

Finding the Fourth Proportional to 13,194.70, 18,208.19 and 7,226.42

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Solution

The fourth proportional to 13,194.70, 18,208.19 and 7,226.42 is: 9,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.70 : 18,208.19 = 7,226.42 : x
  2. Step 2: Convert to fraction form
    13,194.70/18,208.19 = 7,226.42/x
  3. Step 3: Cross multiply
    13,194.70x = 18,208.19 × 7,226.42
  4. Step 4: Simplify right side
    13,194.70x = 131,579,955.40
  5. Step 5: Solve for x
    x = 131,579,955.40/13,194.70
  6. Step 6: Final answer
    x = 9,972.18

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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.