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Finding the Fourth Proportional to 19,173.84, 28,748.07 and 9,180.06

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Solution

The fourth proportional to 19,173.84, 28,748.07 and 9,180.06 is: 13,764.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.84 : 28,748.07 = 9,180.06 : x
  2. Step 2: Convert to fraction form
    19,173.84/28,748.07 = 9,180.06/x
  3. Step 3: Cross multiply
    19,173.84x = 28,748.07 × 9,180.06
  4. Step 4: Simplify right side
    19,173.84x = 263,909,007.48
  5. Step 5: Solve for x
    x = 263,909,007.48/19,173.84
  6. Step 6: Final answer
    x = 13,764.01

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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.