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Finding the Fourth Proportional to 7,866.05, 11,804.54 and 5,085.83

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Solution

The fourth proportional to 7,866.05, 11,804.54 and 5,085.83 is: 7,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.05 : 11,804.54 = 5,085.83 : x
  2. Step 2: Convert to fraction form
    7,866.05/11,804.54 = 5,085.83/x
  3. Step 3: Cross multiply
    7,866.05x = 11,804.54 × 5,085.83
  4. Step 4: Simplify right side
    7,866.05x = 60,035,887.75
  5. Step 5: Solve for x
    x = 60,035,887.75/7,866.05
  6. Step 6: Final answer
    x = 7,632.28

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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.