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Finding the Fourth Proportional to 8,603.11, 11,871.82 and 4,825.92

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Solution

The fourth proportional to 8,603.11, 11,871.82 and 4,825.92 is: 6,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.11 : 11,871.82 = 4,825.92 : x
  2. Step 2: Convert to fraction form
    8,603.11/11,871.82 = 4,825.92/x
  3. Step 3: Cross multiply
    8,603.11x = 11,871.82 × 4,825.92
  4. Step 4: Simplify right side
    8,603.11x = 57,292,499.17
  5. Step 5: Solve for x
    x = 57,292,499.17/8,603.11
  6. Step 6: Final answer
    x = 6,659.51

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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.