Home / 10,881.38-16,322.07-3,485.81

Finding the Fourth Proportional to 10,881.38, 16,322.07 and 3,485.81

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Solution

The fourth proportional to 10,881.38, 16,322.07 and 3,485.81 is: 5,228.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.38 : 16,322.07 = 3,485.81 : x
  2. Step 2: Convert to fraction form
    10,881.38/16,322.07 = 3,485.81/x
  3. Step 3: Cross multiply
    10,881.38x = 16,322.07 × 3,485.81
  4. Step 4: Simplify right side
    10,881.38x = 56,895,634.83
  5. Step 5: Solve for x
    x = 56,895,634.83/10,881.38
  6. Step 6: Final answer
    x = 5,228.72

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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.