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Finding the Fourth Proportional to 8,699.01, 13,047.86 and 2,775.66

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Solution

The fourth proportional to 8,699.01, 13,047.86 and 2,775.66 is: 4,163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.01 : 13,047.86 = 2,775.66 : x
  2. Step 2: Convert to fraction form
    8,699.01/13,047.86 = 2,775.66/x
  3. Step 3: Cross multiply
    8,699.01x = 13,047.86 × 2,775.66
  4. Step 4: Simplify right side
    8,699.01x = 36,216,409.99
  5. Step 5: Solve for x
    x = 36,216,409.99/8,699.01
  6. Step 6: Final answer
    x = 4,163.28

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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.