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Finding the Fourth Proportional to 26,884, 40,326 and 7,428

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Solution

The fourth proportional to 26,884, 40,326 and 7,428 is: 11,142

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,884 : 40,326 = 7,428 : x
  2. Step 2: Convert to fraction form
    26,884/40,326 = 7,428/x
  3. Step 3: Cross multiply
    26,884x = 40,326 × 7,428
  4. Step 4: Simplify right side
    26,884x = 299,541,528
  5. Step 5: Solve for x
    x = 299,541,528/26,884
  6. Step 6: Final answer
    x = 11,142

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.