Home / 8,969.86-13,446.06-4,288.66

Finding the Fourth Proportional to 8,969.86, 13,446.06 and 4,288.66

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Solution

The fourth proportional to 8,969.86, 13,446.06 and 4,288.66 is: 6,428.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.86 : 13,446.06 = 4,288.66 : x
  2. Step 2: Convert to fraction form
    8,969.86/13,446.06 = 4,288.66/x
  3. Step 3: Cross multiply
    8,969.86x = 13,446.06 × 4,288.66
  4. Step 4: Simplify right side
    8,969.86x = 57,665,546.06
  5. Step 5: Solve for x
    x = 57,665,546.06/8,969.86
  6. Step 6: Final answer
    x = 6,428.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.