Home / 18,783.40-28,179.24-7,096.72

Finding the Fourth Proportional to 18,783.40, 28,179.24 and 7,096.72

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Solution

The fourth proportional to 18,783.40, 28,179.24 and 7,096.72 is: 10,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.40 : 28,179.24 = 7,096.72 : x
  2. Step 2: Convert to fraction form
    18,783.40/28,179.24 = 7,096.72/x
  3. Step 3: Cross multiply
    18,783.40x = 28,179.24 × 7,096.72
  4. Step 4: Simplify right side
    18,783.40x = 199,980,176.09
  5. Step 5: Solve for x
    x = 199,980,176.09/18,783.40
  6. Step 6: Final answer
    x = 10,646.64

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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.