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Finding the Fourth Proportional to 19,660, 29,490 and 5,068

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Solution

The fourth proportional to 19,660, 29,490 and 5,068 is: 7,602

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660 : 29,490 = 5,068 : x
  2. Step 2: Convert to fraction form
    19,660/29,490 = 5,068/x
  3. Step 3: Cross multiply
    19,660x = 29,490 × 5,068
  4. Step 4: Simplify right side
    19,660x = 149,455,320
  5. Step 5: Solve for x
    x = 149,455,320/19,660
  6. Step 6: Final answer
    x = 7,602

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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.