Home / 10,889.52-16,319.88-3,957.36

Finding the Fourth Proportional to 10,889.52, 16,319.88 and 3,957.36

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Solution

The fourth proportional to 10,889.52, 16,319.88 and 3,957.36 is: 5,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.52 : 16,319.88 = 3,957.36 : x
  2. Step 2: Convert to fraction form
    10,889.52/16,319.88 = 3,957.36/x
  3. Step 3: Cross multiply
    10,889.52x = 16,319.88 × 3,957.36
  4. Step 4: Simplify right side
    10,889.52x = 64,583,640.32
  5. Step 5: Solve for x
    x = 64,583,640.32/10,889.52
  6. Step 6: Final answer
    x = 5,930.81

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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.