Home / 18,464.36-25,480.72-11,390.76

Finding the Fourth Proportional to 18,464.36, 25,480.72 and 11,390.76

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Solution

The fourth proportional to 18,464.36, 25,480.72 and 11,390.76 is: 15,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.36 : 25,480.72 = 11,390.76 : x
  2. Step 2: Convert to fraction form
    18,464.36/25,480.72 = 11,390.76/x
  3. Step 3: Cross multiply
    18,464.36x = 25,480.72 × 11,390.76
  4. Step 4: Simplify right side
    18,464.36x = 290,244,766.15
  5. Step 5: Solve for x
    x = 290,244,766.15/18,464.36
  6. Step 6: Final answer
    x = 15,719.19

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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.