Home / 9,887.45-14,821.64-3,309.98

Finding the Fourth Proportional to 9,887.45, 14,821.64 and 3,309.98

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Solution

The fourth proportional to 9,887.45, 14,821.64 and 3,309.98 is: 4,961.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,887.45 : 14,821.64 = 3,309.98 : x
  2. Step 2: Convert to fraction form
    9,887.45/14,821.64 = 3,309.98/x
  3. Step 3: Cross multiply
    9,887.45x = 14,821.64 × 3,309.98
  4. Step 4: Simplify right side
    9,887.45x = 49,059,315.42
  5. Step 5: Solve for x
    x = 49,059,315.42/9,887.45
  6. Step 6: Final answer
    x = 4,961.78

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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.