Home / 12,745.25-17,588.55-7,439.03

Finding the Fourth Proportional to 12,745.25, 17,588.55 and 7,439.03

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Solution

The fourth proportional to 12,745.25, 17,588.55 and 7,439.03 is: 10,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.25 : 17,588.55 = 7,439.03 : x
  2. Step 2: Convert to fraction form
    12,745.25/17,588.55 = 7,439.03/x
  3. Step 3: Cross multiply
    12,745.25x = 17,588.55 × 7,439.03
  4. Step 4: Simplify right side
    12,745.25x = 130,841,751.11
  5. Step 5: Solve for x
    x = 130,841,751.11/12,745.25
  6. Step 6: Final answer
    x = 10,265.93

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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.