Home / 12,719.37-17,553.79-7,055.95

Finding the Fourth Proportional to 12,719.37, 17,553.79 and 7,055.95

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Solution

The fourth proportional to 12,719.37, 17,553.79 and 7,055.95 is: 9,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.37 : 17,553.79 = 7,055.95 : x
  2. Step 2: Convert to fraction form
    12,719.37/17,553.79 = 7,055.95/x
  3. Step 3: Cross multiply
    12,719.37x = 17,553.79 × 7,055.95
  4. Step 4: Simplify right side
    12,719.37x = 123,858,563.44
  5. Step 5: Solve for x
    x = 123,858,563.44/12,719.37
  6. Step 6: Final answer
    x = 9,737.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.