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Finding the Fourth Proportional to 12,654.50, 17,459.28 and 7,348.28

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Solution

The fourth proportional to 12,654.50, 17,459.28 and 7,348.28 is: 10,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654.50 : 17,459.28 = 7,348.28 : x
  2. Step 2: Convert to fraction form
    12,654.50/17,459.28 = 7,348.28/x
  3. Step 3: Cross multiply
    12,654.50x = 17,459.28 × 7,348.28
  4. Step 4: Simplify right side
    12,654.50x = 128,295,590.74
  5. Step 5: Solve for x
    x = 128,295,590.74/12,654.50
  6. Step 6: Final answer
    x = 10,138.34

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