Home / 12,745.05-19,128.51-6,175.59

Finding the Fourth Proportional to 12,745.05, 19,128.51 and 6,175.59

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Solution

The fourth proportional to 12,745.05, 19,128.51 and 6,175.59 is: 9,268.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.05 : 19,128.51 = 6,175.59 : x
  2. Step 2: Convert to fraction form
    12,745.05/19,128.51 = 6,175.59/x
  3. Step 3: Cross multiply
    12,745.05x = 19,128.51 × 6,175.59
  4. Step 4: Simplify right side
    12,745.05x = 118,129,835.07
  5. Step 5: Solve for x
    x = 118,129,835.07/12,745.05
  6. Step 6: Final answer
    x = 9,268.68

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1.5x scale

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.