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Finding the Fourth Proportional to 19,460, 26,855.44 and 10,628

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Solution

The fourth proportional to 19,460, 26,855.44 and 10,628 is: 14,666.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,460 : 26,855.44 = 10,628 : x
  2. Step 2: Convert to fraction form
    19,460/26,855.44 = 10,628/x
  3. Step 3: Cross multiply
    19,460x = 26,855.44 × 10,628
  4. Step 4: Simplify right side
    19,460x = 285,419,616.32
  5. Step 5: Solve for x
    x = 285,419,616.32/19,460
  6. Step 6: Final answer
    x = 14,666.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.