Home / 9,328.50-13,989.38-3,087.36

Finding the Fourth Proportional to 9,328.50, 13,989.38 and 3,087.36

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Solution

The fourth proportional to 9,328.50, 13,989.38 and 3,087.36 is: 4,629.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.50 : 13,989.38 = 3,087.36 : x
  2. Step 2: Convert to fraction form
    9,328.50/13,989.38 = 3,087.36/x
  3. Step 3: Cross multiply
    9,328.50x = 13,989.38 × 3,087.36
  4. Step 4: Simplify right side
    9,328.50x = 43,190,252.24
  5. Step 5: Solve for x
    x = 43,190,252.24/9,328.50
  6. Step 6: Final answer
    x = 4,629.92

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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.