Home / 13,334.70-18,405.75-8,028.54

Finding the Fourth Proportional to 13,334.70, 18,405.75 and 8,028.54

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Solution

The fourth proportional to 13,334.70, 18,405.75 and 8,028.54 is: 11,081.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334.70 : 18,405.75 = 8,028.54 : x
  2. Step 2: Convert to fraction form
    13,334.70/18,405.75 = 8,028.54/x
  3. Step 3: Cross multiply
    13,334.70x = 18,405.75 × 8,028.54
  4. Step 4: Simplify right side
    13,334.70x = 147,771,300.11
  5. Step 5: Solve for x
    x = 147,771,300.11/13,334.70
  6. Step 6: Final answer
    x = 11,081.71

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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.