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Finding the Fourth Proportional to 19,868, 29,802 and 5,276

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Solution

The fourth proportional to 19,868, 29,802 and 5,276 is: 7,914

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868 : 29,802 = 5,276 : x
  2. Step 2: Convert to fraction form
    19,868/29,802 = 5,276/x
  3. Step 3: Cross multiply
    19,868x = 29,802 × 5,276
  4. Step 4: Simplify right side
    19,868x = 157,235,352
  5. Step 5: Solve for x
    x = 157,235,352/19,868
  6. Step 6: Final answer
    x = 7,914

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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.