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Finding the Fourth Proportional to 18,684, 28,026 and 7,596.72

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Solution

The fourth proportional to 18,684, 28,026 and 7,596.72 is: 11,395.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684 : 28,026 = 7,596.72 : x
  2. Step 2: Convert to fraction form
    18,684/28,026 = 7,596.72/x
  3. Step 3: Cross multiply
    18,684x = 28,026 × 7,596.72
  4. Step 4: Simplify right side
    18,684x = 212,905,674.72
  5. Step 5: Solve for x
    x = 212,905,674.72/18,684
  6. Step 6: Final answer
    x = 11,395.08

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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.