Home / 18,455.32-25,469.58-11,382.04

Finding the Fourth Proportional to 18,455.32, 25,469.58 and 11,382.04

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Solution

The fourth proportional to 18,455.32, 25,469.58 and 11,382.04 is: 15,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.32 : 25,469.58 = 11,382.04 : x
  2. Step 2: Convert to fraction form
    18,455.32/25,469.58 = 11,382.04/x
  3. Step 3: Cross multiply
    18,455.32x = 25,469.58 × 11,382.04
  4. Step 4: Simplify right side
    18,455.32x = 289,895,778.34
  5. Step 5: Solve for x
    x = 289,895,778.34/18,455.32
  6. Step 6: Final answer
    x = 15,707.98

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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.