Home / 18,591.84-25,670.07-11,431.37

Finding the Fourth Proportional to 18,591.84, 25,670.07 and 11,431.37

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Solution

The fourth proportional to 18,591.84, 25,670.07 and 11,431.37 is: 15,783.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.84 : 25,670.07 = 11,431.37 : x
  2. Step 2: Convert to fraction form
    18,591.84/25,670.07 = 11,431.37/x
  3. Step 3: Cross multiply
    18,591.84x = 25,670.07 × 11,431.37
  4. Step 4: Simplify right side
    18,591.84x = 293,444,132.27
  5. Step 5: Solve for x
    x = 293,444,132.27/18,591.84
  6. Step 6: Final answer
    x = 15,783.49

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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.