Home / 7,709.28-11,563.94-1,865.88

Finding the Fourth Proportional to 7,709.28, 11,563.94 and 1,865.88

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Solution

The fourth proportional to 7,709.28, 11,563.94 and 1,865.88 is: 2,798.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.28 : 11,563.94 = 1,865.88 : x
  2. Step 2: Convert to fraction form
    7,709.28/11,563.94 = 1,865.88/x
  3. Step 3: Cross multiply
    7,709.28x = 11,563.94 × 1,865.88
  4. Step 4: Simplify right side
    7,709.28x = 21,576,924.37
  5. Step 5: Solve for x
    x = 21,576,924.37/7,709.28
  6. Step 6: Final answer
    x = 2,798.82

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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.