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Finding the Fourth Proportional to 8,451.54, 11,654.28 and 7,260.84

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Solution

The fourth proportional to 8,451.54, 11,654.28 and 7,260.84 is: 10,012.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.54 : 11,654.28 = 7,260.84 : x
  2. Step 2: Convert to fraction form
    8,451.54/11,654.28 = 7,260.84/x
  3. Step 3: Cross multiply
    8,451.54x = 11,654.28 × 7,260.84
  4. Step 4: Simplify right side
    8,451.54x = 84,619,862.40
  5. Step 5: Solve for x
    x = 84,619,862.40/8,451.54
  6. Step 6: Final answer
    x = 10,012.36

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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.