Home / 18,865.58-28,301.99-7,177.86

Finding the Fourth Proportional to 18,865.58, 28,301.99 and 7,177.86

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Solution

The fourth proportional to 18,865.58, 28,301.99 and 7,177.86 is: 10,768.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.58 : 28,301.99 = 7,177.86 : x
  2. Step 2: Convert to fraction form
    18,865.58/28,301.99 = 7,177.86/x
  3. Step 3: Cross multiply
    18,865.58x = 28,301.99 × 7,177.86
  4. Step 4: Simplify right side
    18,865.58x = 203,147,686.05
  5. Step 5: Solve for x
    x = 203,147,686.05/18,865.58
  6. Step 6: Final answer
    x = 10,768.17

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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.