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Finding the Fourth Proportional to 8,536.67, 12,804.61 and 2,991.25

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Solution

The fourth proportional to 8,536.67, 12,804.61 and 2,991.25 is: 4,486.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536.67 : 12,804.61 = 2,991.25 : x
  2. Step 2: Convert to fraction form
    8,536.67/12,804.61 = 2,991.25/x
  3. Step 3: Cross multiply
    8,536.67x = 12,804.61 × 2,991.25
  4. Step 4: Simplify right side
    8,536.67x = 38,301,789.66
  5. Step 5: Solve for x
    x = 38,301,789.66/8,536.67
  6. Step 6: Final answer
    x = 4,486.74

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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.