Home / 19,099.52-28,638.78-6,618.42

Finding the Fourth Proportional to 19,099.52, 28,638.78 and 6,618.42

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Solution

The fourth proportional to 19,099.52, 28,638.78 and 6,618.42 is: 9,923.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,099.52 : 28,638.78 = 6,618.42 : x
  2. Step 2: Convert to fraction form
    19,099.52/28,638.78 = 6,618.42/x
  3. Step 3: Cross multiply
    19,099.52x = 28,638.78 × 6,618.42
  4. Step 4: Simplify right side
    19,099.52x = 189,543,474.33
  5. Step 5: Solve for x
    x = 189,543,474.33/19,099.52
  6. Step 6: Final answer
    x = 9,923.99

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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.