Home / 18,783.89-28,171.26-6,300.68

Finding the Fourth Proportional to 18,783.89, 28,171.26 and 6,300.68

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Solution

The fourth proportional to 18,783.89, 28,171.26 and 6,300.68 is: 9,449.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.89 : 28,171.26 = 6,300.68 : x
  2. Step 2: Convert to fraction form
    18,783.89/28,171.26 = 6,300.68/x
  3. Step 3: Cross multiply
    18,783.89x = 28,171.26 × 6,300.68
  4. Step 4: Simplify right side
    18,783.89x = 177,497,953.60
  5. Step 5: Solve for x
    x = 177,497,953.60/18,783.89
  6. Step 6: Final answer
    x = 9,449.48

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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.