Home / 19,165.54-28,738.57-8,768.38

Finding the Fourth Proportional to 19,165.54, 28,738.57 and 8,768.38

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Solution

The fourth proportional to 19,165.54, 28,738.57 and 8,768.38 is: 13,148.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.54 : 28,738.57 = 8,768.38 : x
  2. Step 2: Convert to fraction form
    19,165.54/28,738.57 = 8,768.38/x
  3. Step 3: Cross multiply
    19,165.54x = 28,738.57 × 8,768.38
  4. Step 4: Simplify right side
    19,165.54x = 251,990,702.42
  5. Step 5: Solve for x
    x = 251,990,702.42/19,165.54
  6. Step 6: Final answer
    x = 13,148.11

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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.