Home / 12,513.51-18,765.63-3,745.44

Finding the Fourth Proportional to 12,513.51, 18,765.63 and 3,745.44

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Solution

The fourth proportional to 12,513.51, 18,765.63 and 3,745.44 is: 5,616.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.51 : 18,765.63 = 3,745.44 : x
  2. Step 2: Convert to fraction form
    12,513.51/18,765.63 = 3,745.44/x
  3. Step 3: Cross multiply
    12,513.51x = 18,765.63 × 3,745.44
  4. Step 4: Simplify right side
    12,513.51x = 70,285,541.23
  5. Step 5: Solve for x
    x = 70,285,541.23/12,513.51
  6. Step 6: Final answer
    x = 5,616.77

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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.