Home / 18,902.08-28,336.68-7,801.84

Finding the Fourth Proportional to 18,902.08, 28,336.68 and 7,801.84

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Solution

The fourth proportional to 18,902.08, 28,336.68 and 7,801.84 is: 11,695.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.08 : 28,336.68 = 7,801.84 : x
  2. Step 2: Convert to fraction form
    18,902.08/28,336.68 = 7,801.84/x
  3. Step 3: Cross multiply
    18,902.08x = 28,336.68 × 7,801.84
  4. Step 4: Simplify right side
    18,902.08x = 221,078,243.49
  5. Step 5: Solve for x
    x = 221,078,243.49/18,902.08
  6. Step 6: Final answer
    x = 11,695.97

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1.5x scale

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.