Home / 19,669.56-27,142.94-11,171.46

Finding the Fourth Proportional to 19,669.56, 27,142.94 and 11,171.46

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Solution

The fourth proportional to 19,669.56, 27,142.94 and 11,171.46 is: 15,416.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.56 : 27,142.94 = 11,171.46 : x
  2. Step 2: Convert to fraction form
    19,669.56/27,142.94 = 11,171.46/x
  3. Step 3: Cross multiply
    19,669.56x = 27,142.94 × 11,171.46
  4. Step 4: Simplify right side
    19,669.56x = 303,226,268.49
  5. Step 5: Solve for x
    x = 303,226,268.49/19,669.56
  6. Step 6: Final answer
    x = 15,416.02

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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.