Home / 9,128.36-13,694.15-4,745.45

Finding the Fourth Proportional to 9,128.36, 13,694.15 and 4,745.45

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Solution

The fourth proportional to 9,128.36, 13,694.15 and 4,745.45 is: 7,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.36 : 13,694.15 = 4,745.45 : x
  2. Step 2: Convert to fraction form
    9,128.36/13,694.15 = 4,745.45/x
  3. Step 3: Cross multiply
    9,128.36x = 13,694.15 × 4,745.45
  4. Step 4: Simplify right side
    9,128.36x = 64,984,847.51
  5. Step 5: Solve for x
    x = 64,984,847.51/9,128.36
  6. Step 6: Final answer
    x = 7,119.01

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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.