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Finding the Fourth Proportional to 8,585.01, 11,858.67 and 6,620.22

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Solution

The fourth proportional to 8,585.01, 11,858.67 and 6,620.22 is: 9,144.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.01 : 11,858.67 = 6,620.22 : x
  2. Step 2: Convert to fraction form
    8,585.01/11,858.67 = 6,620.22/x
  3. Step 3: Cross multiply
    8,585.01x = 11,858.67 × 6,620.22
  4. Step 4: Simplify right side
    8,585.01x = 78,507,004.31
  5. Step 5: Solve for x
    x = 78,507,004.31/8,585.01
  6. Step 6: Final answer
    x = 9,144.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.