Home / 13,760.07-20,640.12-4,995

Finding the Fourth Proportional to 13,760.07, 20,640.12 and 4,995

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Solution

The fourth proportional to 13,760.07, 20,640.12 and 4,995 is: 7,492.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.07 : 20,640.12 = 4,995 : x
  2. Step 2: Convert to fraction form
    13,760.07/20,640.12 = 4,995/x
  3. Step 3: Cross multiply
    13,760.07x = 20,640.12 × 4,995
  4. Step 4: Simplify right side
    13,760.07x = 103,097,399.40
  5. Step 5: Solve for x
    x = 103,097,399.40/13,760.07
  6. Step 6: Final answer
    x = 7,492.51

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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.