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Finding the Fourth Proportional to 11,346, 17,019 and 3,555

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Solution

The fourth proportional to 11,346, 17,019 and 3,555 is: 5,332.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,346 : 17,019 = 3,555 : x
  2. Step 2: Convert to fraction form
    11,346/17,019 = 3,555/x
  3. Step 3: Cross multiply
    11,346x = 17,019 × 3,555
  4. Step 4: Simplify right side
    11,346x = 60,502,545
  5. Step 5: Solve for x
    x = 60,502,545/11,346
  6. Step 6: Final answer
    x = 5,332.50

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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.