Home / 9,107.05-12,567.77-5,128.23

Finding the Fourth Proportional to 9,107.05, 12,567.77 and 5,128.23

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Solution

The fourth proportional to 9,107.05, 12,567.77 and 5,128.23 is: 7,076.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,107.05 : 12,567.77 = 5,128.23 : x
  2. Step 2: Convert to fraction form
    9,107.05/12,567.77 = 5,128.23/x
  3. Step 3: Cross multiply
    9,107.05x = 12,567.77 × 5,128.23
  4. Step 4: Simplify right side
    9,107.05x = 64,450,427.97
  5. Step 5: Solve for x
    x = 64,450,427.97/9,107.05
  6. Step 6: Final answer
    x = 7,076.98

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