Home / 13,745.00-18,964.94-7,775.36

Finding the Fourth Proportional to 13,745.00, 18,964.94 and 7,775.36

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Solution

The fourth proportional to 13,745.00, 18,964.94 and 7,775.36 is: 10,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.00 : 18,964.94 = 7,775.36 : x
  2. Step 2: Convert to fraction form
    13,745.00/18,964.94 = 7,775.36/x
  3. Step 3: Cross multiply
    13,745.00x = 18,964.94 × 7,775.36
  4. Step 4: Simplify right side
    13,745.00x = 147,459,197.00
  5. Step 5: Solve for x
    x = 147,459,197.00/13,745.00
  6. Step 6: Final answer
    x = 10,728.21

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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.