Home / 7,635.62-11,430.39-6,905.54

Finding the Fourth Proportional to 7,635.62, 11,430.39 and 6,905.54

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Solution

The fourth proportional to 7,635.62, 11,430.39 and 6,905.54 is: 10,337.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,635.62 : 11,430.39 = 6,905.54 : x
  2. Step 2: Convert to fraction form
    7,635.62/11,430.39 = 6,905.54/x
  3. Step 3: Cross multiply
    7,635.62x = 11,430.39 × 6,905.54
  4. Step 4: Simplify right side
    7,635.62x = 78,933,015.36
  5. Step 5: Solve for x
    x = 78,933,015.36/7,635.62
  6. Step 6: Final answer
    x = 10,337.47

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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.