Home / 7,715.08-11,563.36-3,549.36

Finding the Fourth Proportional to 7,715.08, 11,563.36 and 3,549.36

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Solution

The fourth proportional to 7,715.08, 11,563.36 and 3,549.36 is: 5,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.08 : 11,563.36 = 3,549.36 : x
  2. Step 2: Convert to fraction form
    7,715.08/11,563.36 = 3,549.36/x
  3. Step 3: Cross multiply
    7,715.08x = 11,563.36 × 3,549.36
  4. Step 4: Simplify right side
    7,715.08x = 41,042,527.45
  5. Step 5: Solve for x
    x = 41,042,527.45/7,715.08
  6. Step 6: Final answer
    x = 5,319.78

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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.