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Finding the Fourth Proportional to 8,698.82, 12,004.40 and 4,719.97

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Solution

The fourth proportional to 8,698.82, 12,004.40 and 4,719.97 is: 6,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.82 : 12,004.40 = 4,719.97 : x
  2. Step 2: Convert to fraction form
    8,698.82/12,004.40 = 4,719.97/x
  3. Step 3: Cross multiply
    8,698.82x = 12,004.40 × 4,719.97
  4. Step 4: Simplify right side
    8,698.82x = 56,660,324.25
  5. Step 5: Solve for x
    x = 56,660,324.25/8,698.82
  6. Step 6: Final answer
    x = 6,513.56

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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.