Home / 18,603.08-27,904.85-5,455.72

Finding the Fourth Proportional to 18,603.08, 27,904.85 and 5,455.72

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Solution

The fourth proportional to 18,603.08, 27,904.85 and 5,455.72 is: 8,183.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.08 : 27,904.85 = 5,455.72 : x
  2. Step 2: Convert to fraction form
    18,603.08/27,904.85 = 5,455.72/x
  3. Step 3: Cross multiply
    18,603.08x = 27,904.85 × 5,455.72
  4. Step 4: Simplify right side
    18,603.08x = 152,240,951.20
  5. Step 5: Solve for x
    x = 152,240,951.20/18,603.08
  6. Step 6: Final answer
    x = 8,183.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.