Home / 12,955.95-19,436.75-4,190.73

Finding the Fourth Proportional to 12,955.95, 19,436.75 and 4,190.73

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Solution

The fourth proportional to 12,955.95, 19,436.75 and 4,190.73 is: 6,287.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.95 : 19,436.75 = 4,190.73 : x
  2. Step 2: Convert to fraction form
    12,955.95/19,436.75 = 4,190.73/x
  3. Step 3: Cross multiply
    12,955.95x = 19,436.75 × 4,190.73
  4. Step 4: Simplify right side
    12,955.95x = 81,454,171.33
  5. Step 5: Solve for x
    x = 81,454,171.33/12,955.95
  6. Step 6: Final answer
    x = 6,287.01

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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.