Home / 13,550.11-18,705.54-10,194.20

Finding the Fourth Proportional to 13,550.11, 18,705.54 and 10,194.20

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Solution

The fourth proportional to 13,550.11, 18,705.54 and 10,194.20 is: 14,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.11 : 18,705.54 = 10,194.20 : x
  2. Step 2: Convert to fraction form
    13,550.11/18,705.54 = 10,194.20/x
  3. Step 3: Cross multiply
    13,550.11x = 18,705.54 × 10,194.20
  4. Step 4: Simplify right side
    13,550.11x = 190,688,015.87
  5. Step 5: Solve for x
    x = 190,688,015.87/13,550.11
  6. Step 6: Final answer
    x = 14,072.80

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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.