Home / 12,160.88-18,274.26-6,618.32

Finding the Fourth Proportional to 12,160.88, 18,274.26 and 6,618.32

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Solution

The fourth proportional to 12,160.88, 18,274.26 and 6,618.32 is: 9,945.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.88 : 18,274.26 = 6,618.32 : x
  2. Step 2: Convert to fraction form
    12,160.88/18,274.26 = 6,618.32/x
  3. Step 3: Cross multiply
    12,160.88x = 18,274.26 × 6,618.32
  4. Step 4: Simplify right side
    12,160.88x = 120,944,900.44
  5. Step 5: Solve for x
    x = 120,944,900.44/12,160.88
  6. Step 6: Final answer
    x = 9,945.41

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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.