Home / 18,460.56-25,475.59-11,391.09

Finding the Fourth Proportional to 18,460.56, 25,475.59 and 11,391.09

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Solution

The fourth proportional to 18,460.56, 25,475.59 and 11,391.09 is: 15,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.56 : 25,475.59 = 11,391.09 : x
  2. Step 2: Convert to fraction form
    18,460.56/25,475.59 = 11,391.09/x
  3. Step 3: Cross multiply
    18,460.56x = 25,475.59 × 11,391.09
  4. Step 4: Simplify right side
    18,460.56x = 290,194,738.49
  5. Step 5: Solve for x
    x = 290,194,738.49/18,460.56
  6. Step 6: Final answer
    x = 15,719.71

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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.