Home / 7,898.72-11,902.55-6,542.37

Finding the Fourth Proportional to 7,898.72, 11,902.55 and 6,542.37

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Solution

The fourth proportional to 7,898.72, 11,902.55 and 6,542.37 is: 9,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.72 : 11,902.55 = 6,542.37 : x
  2. Step 2: Convert to fraction form
    7,898.72/11,902.55 = 6,542.37/x
  3. Step 3: Cross multiply
    7,898.72x = 11,902.55 × 6,542.37
  4. Step 4: Simplify right side
    7,898.72x = 77,870,853.33
  5. Step 5: Solve for x
    x = 77,870,853.33/7,898.72
  6. Step 6: Final answer
    x = 9,858.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.