Home / 18,783.43-28,177.88-6,300.65

Finding the Fourth Proportional to 18,783.43, 28,177.88 and 6,300.65

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Solution

The fourth proportional to 18,783.43, 28,177.88 and 6,300.65 is: 9,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.43 : 28,177.88 = 6,300.65 : x
  2. Step 2: Convert to fraction form
    18,783.43/28,177.88 = 6,300.65/x
  3. Step 3: Cross multiply
    18,783.43x = 28,177.88 × 6,300.65
  4. Step 4: Simplify right side
    18,783.43x = 177,538,998.56
  5. Step 5: Solve for x
    x = 177,538,998.56/18,783.43
  6. Step 6: Final answer
    x = 9,451.90

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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.