Home / 12,955.45-19,436.01-4,190.24

Finding the Fourth Proportional to 12,955.45, 19,436.01 and 4,190.24

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Solution

The fourth proportional to 12,955.45, 19,436.01 and 4,190.24 is: 6,286.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.45 : 19,436.01 = 4,190.24 : x
  2. Step 2: Convert to fraction form
    12,955.45/19,436.01 = 4,190.24/x
  3. Step 3: Cross multiply
    12,955.45x = 19,436.01 × 4,190.24
  4. Step 4: Simplify right side
    12,955.45x = 81,441,428.41
  5. Step 5: Solve for x
    x = 81,441,428.41/12,955.45
  6. Step 6: Final answer
    x = 6,286.27

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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.