Home / 18,650.45-25,711.27-13,336.04

Finding the Fourth Proportional to 18,650.45, 25,711.27 and 13,336.04

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Solution

The fourth proportional to 18,650.45, 25,711.27 and 13,336.04 is: 18,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.45 : 25,711.27 = 13,336.04 : x
  2. Step 2: Convert to fraction form
    18,650.45/25,711.27 = 13,336.04/x
  3. Step 3: Cross multiply
    18,650.45x = 25,711.27 × 13,336.04
  4. Step 4: Simplify right side
    18,650.45x = 342,886,631.12
  5. Step 5: Solve for x
    x = 342,886,631.12/18,650.45
  6. Step 6: Final answer
    x = 18,384.90

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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.