Home / 9,912.24-13,679.32-5,664

Finding the Fourth Proportional to 9,912.24, 13,679.32 and 5,664

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Solution

The fourth proportional to 9,912.24, 13,679.32 and 5,664 is: 7,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.24 : 13,679.32 = 5,664 : x
  2. Step 2: Convert to fraction form
    9,912.24/13,679.32 = 5,664/x
  3. Step 3: Cross multiply
    9,912.24x = 13,679.32 × 5,664
  4. Step 4: Simplify right side
    9,912.24x = 77,479,668.48
  5. Step 5: Solve for x
    x = 77,479,668.48/9,912.24
  6. Step 6: Final answer
    x = 7,816.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.