Home / 8,669.11-11,960.40-4,891.81

Finding the Fourth Proportional to 8,669.11, 11,960.40 and 4,891.81

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Solution

The fourth proportional to 8,669.11, 11,960.40 and 4,891.81 is: 6,749.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.11 : 11,960.40 = 4,891.81 : x
  2. Step 2: Convert to fraction form
    8,669.11/11,960.40 = 4,891.81/x
  3. Step 3: Cross multiply
    8,669.11x = 11,960.40 × 4,891.81
  4. Step 4: Simplify right side
    8,669.11x = 58,508,004.32
  5. Step 5: Solve for x
    x = 58,508,004.32/8,669.11
  6. Step 6: Final answer
    x = 6,749.02

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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.