Home / 12,728.95-19,104.66-6,160.05

Finding the Fourth Proportional to 12,728.95, 19,104.66 and 6,160.05

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Solution

The fourth proportional to 12,728.95, 19,104.66 and 6,160.05 is: 9,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.95 : 19,104.66 = 6,160.05 : x
  2. Step 2: Convert to fraction form
    12,728.95/19,104.66 = 6,160.05/x
  3. Step 3: Cross multiply
    12,728.95x = 19,104.66 × 6,160.05
  4. Step 4: Simplify right side
    12,728.95x = 117,685,660.83
  5. Step 5: Solve for x
    x = 117,685,660.83/12,728.95
  6. Step 6: Final answer
    x = 9,245.51

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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.