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Finding the Fourth Proportional to 16,640, 24,960 and 4,328

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Solution

The fourth proportional to 16,640, 24,960 and 4,328 is: 6,492

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,640 : 24,960 = 4,328 : x
  2. Step 2: Convert to fraction form
    16,640/24,960 = 4,328/x
  3. Step 3: Cross multiply
    16,640x = 24,960 × 4,328
  4. Step 4: Simplify right side
    16,640x = 108,026,880
  5. Step 5: Solve for x
    x = 108,026,880/16,640
  6. Step 6: Final answer
    x = 6,492

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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.