Home / 18,886.14-28,330.16-7,200.27

Finding the Fourth Proportional to 18,886.14, 28,330.16 and 7,200.27

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Solution

The fourth proportional to 18,886.14, 28,330.16 and 7,200.27 is: 10,800.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.14 : 28,330.16 = 7,200.27 : x
  2. Step 2: Convert to fraction form
    18,886.14/28,330.16 = 7,200.27/x
  3. Step 3: Cross multiply
    18,886.14x = 28,330.16 × 7,200.27
  4. Step 4: Simplify right side
    18,886.14x = 203,984,765.14
  5. Step 5: Solve for x
    x = 203,984,765.14/18,886.14
  6. Step 6: Final answer
    x = 10,800.77

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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.