Home / 12,182.37-18,271.48-3,415.26

Finding the Fourth Proportional to 12,182.37, 18,271.48 and 3,415.26

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Solution

The fourth proportional to 12,182.37, 18,271.48 and 3,415.26 is: 5,122.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.37 : 18,271.48 = 3,415.26 : x
  2. Step 2: Convert to fraction form
    12,182.37/18,271.48 = 3,415.26/x
  3. Step 3: Cross multiply
    12,182.37x = 18,271.48 × 3,415.26
  4. Step 4: Simplify right side
    12,182.37x = 62,401,854.78
  5. Step 5: Solve for x
    x = 62,401,854.78/12,182.37
  6. Step 6: Final answer
    x = 5,122.31

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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.