Home / 10,885.36-16,318.26-3,955

Finding the Fourth Proportional to 10,885.36, 16,318.26 and 3,955

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Solution

The fourth proportional to 10,885.36, 16,318.26 and 3,955 is: 5,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.36 : 16,318.26 = 3,955 : x
  2. Step 2: Convert to fraction form
    10,885.36/16,318.26 = 3,955/x
  3. Step 3: Cross multiply
    10,885.36x = 16,318.26 × 3,955
  4. Step 4: Simplify right side
    10,885.36x = 64,538,718.30
  5. Step 5: Solve for x
    x = 64,538,718.30/10,885.36
  6. Step 6: Final answer
    x = 5,928.95

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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.