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Finding the Fourth Proportional to 8,448.11, 11,659.11 and 4,911.10

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Solution

The fourth proportional to 8,448.11, 11,659.11 and 4,911.10 is: 6,777.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.11 : 11,659.11 = 4,911.10 : x
  2. Step 2: Convert to fraction form
    8,448.11/11,659.11 = 4,911.10/x
  3. Step 3: Cross multiply
    8,448.11x = 11,659.11 × 4,911.10
  4. Step 4: Simplify right side
    8,448.11x = 57,259,055.12
  5. Step 5: Solve for x
    x = 57,259,055.12/8,448.11
  6. Step 6: Final answer
    x = 6,777.74

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Half scale
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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.