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Finding the Fourth Proportional to 18,975, 28,460.06 and 5,826.28

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Solution

The fourth proportional to 18,975, 28,460.06 and 5,826.28 is: 8,738.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975 : 28,460.06 = 5,826.28 : x
  2. Step 2: Convert to fraction form
    18,975/28,460.06 = 5,826.28/x
  3. Step 3: Cross multiply
    18,975x = 28,460.06 × 5,826.28
  4. Step 4: Simplify right side
    18,975x = 165,816,278.38
  5. Step 5: Solve for x
    x = 165,816,278.38/18,975
  6. Step 6: Final answer
    x = 8,738.67

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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.