Home / 18,631.32-25,708.36-11,077.48

Finding the Fourth Proportional to 18,631.32, 25,708.36 and 11,077.48

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Solution

The fourth proportional to 18,631.32, 25,708.36 and 11,077.48 is: 15,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.32 : 25,708.36 = 11,077.48 : x
  2. Step 2: Convert to fraction form
    18,631.32/25,708.36 = 11,077.48/x
  3. Step 3: Cross multiply
    18,631.32x = 25,708.36 × 11,077.48
  4. Step 4: Simplify right side
    18,631.32x = 284,783,843.73
  5. Step 5: Solve for x
    x = 284,783,843.73/18,631.32
  6. Step 6: Final answer
    x = 15,285.22

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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.