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Finding the Fourth Proportional to 8,504.60, 11,742.07 and 7,605.54

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Solution

The fourth proportional to 8,504.60, 11,742.07 and 7,605.54 is: 10,500.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,504.60 : 11,742.07 = 7,605.54 : x
  2. Step 2: Convert to fraction form
    8,504.60/11,742.07 = 7,605.54/x
  3. Step 3: Cross multiply
    8,504.60x = 11,742.07 × 7,605.54
  4. Step 4: Simplify right side
    8,504.60x = 89,304,783.07
  5. Step 5: Solve for x
    x = 89,304,783.07/8,504.60
  6. Step 6: Final answer
    x = 10,500.76

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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.