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Finding the Fourth Proportional to 44,642, 66,963 and 11,810

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Solution

The fourth proportional to 44,642, 66,963 and 11,810 is: 17,715

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,642 : 66,963 = 11,810 : x
  2. Step 2: Convert to fraction form
    44,642/66,963 = 11,810/x
  3. Step 3: Cross multiply
    44,642x = 66,963 × 11,810
  4. Step 4: Simplify right side
    44,642x = 790,833,030
  5. Step 5: Solve for x
    x = 790,833,030/44,642
  6. Step 6: Final answer
    x = 17,715

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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.