Home / 12,028.06-16,605.90-7,555.64

Finding the Fourth Proportional to 12,028.06, 16,605.90 and 7,555.64

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Solution

The fourth proportional to 12,028.06, 16,605.90 and 7,555.64 is: 10,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,028.06 : 16,605.90 = 7,555.64 : x
  2. Step 2: Convert to fraction form
    12,028.06/16,605.90 = 7,555.64/x
  3. Step 3: Cross multiply
    12,028.06x = 16,605.90 × 7,555.64
  4. Step 4: Simplify right side
    12,028.06x = 125,468,202.28
  5. Step 5: Solve for x
    x = 125,468,202.28/12,028.06
  6. Step 6: Final answer
    x = 10,431.29

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1.5x scale

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.