Home / 18,728.23-25,845.72-10,770.45

Finding the Fourth Proportional to 18,728.23, 25,845.72 and 10,770.45

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Solution

The fourth proportional to 18,728.23, 25,845.72 and 10,770.45 is: 14,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.23 : 25,845.72 = 10,770.45 : x
  2. Step 2: Convert to fraction form
    18,728.23/25,845.72 = 10,770.45/x
  3. Step 3: Cross multiply
    18,728.23x = 25,845.72 × 10,770.45
  4. Step 4: Simplify right side
    18,728.23x = 278,370,133.92
  5. Step 5: Solve for x
    x = 278,370,133.92/18,728.23
  6. Step 6: Final answer
    x = 14,863.67

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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.