Home / 9,885.28-13,634-5,905.52

Finding the Fourth Proportional to 9,885.28, 13,634 and 5,905.52

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Solution

The fourth proportional to 9,885.28, 13,634 and 5,905.52 is: 8,145.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.28 : 13,634 = 5,905.52 : x
  2. Step 2: Convert to fraction form
    9,885.28/13,634 = 5,905.52/x
  3. Step 3: Cross multiply
    9,885.28x = 13,634 × 5,905.52
  4. Step 4: Simplify right side
    9,885.28x = 80,515,859.68
  5. Step 5: Solve for x
    x = 80,515,859.68/9,885.28
  6. Step 6: Final answer
    x = 8,145.03

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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.