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Finding the Fourth Proportional to 12,968.82, 17,892.36 and 8,495.06

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Solution

The fourth proportional to 12,968.82, 17,892.36 and 8,495.06 is: 11,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.82 : 17,892.36 = 8,495.06 : x
  2. Step 2: Convert to fraction form
    12,968.82/17,892.36 = 8,495.06/x
  3. Step 3: Cross multiply
    12,968.82x = 17,892.36 × 8,495.06
  4. Step 4: Simplify right side
    12,968.82x = 151,996,582.28
  5. Step 5: Solve for x
    x = 151,996,582.28/12,968.82
  6. Step 6: Final answer
    x = 11,720.16

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1.5x scale

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.