Home / 18,884.05-28,300.56-7,190.89

Finding the Fourth Proportional to 18,884.05, 28,300.56 and 7,190.89

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Solution

The fourth proportional to 18,884.05, 28,300.56 and 7,190.89 is: 10,776.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.05 : 28,300.56 = 7,190.89 : x
  2. Step 2: Convert to fraction form
    18,884.05/28,300.56 = 7,190.89/x
  3. Step 3: Cross multiply
    18,884.05x = 28,300.56 × 7,190.89
  4. Step 4: Simplify right side
    18,884.05x = 203,506,107.19
  5. Step 5: Solve for x
    x = 203,506,107.19/18,884.05
  6. Step 6: Final answer
    x = 10,776.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.