Home / 10,889.40-16,336.30-4,315.82

Finding the Fourth Proportional to 10,889.40, 16,336.30 and 4,315.82

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Solution

The fourth proportional to 10,889.40, 16,336.30 and 4,315.82 is: 6,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.40 : 16,336.30 = 4,315.82 : x
  2. Step 2: Convert to fraction form
    10,889.40/16,336.30 = 4,315.82/x
  3. Step 3: Cross multiply
    10,889.40x = 16,336.30 × 4,315.82
  4. Step 4: Simplify right side
    10,889.40x = 70,504,530.27
  5. Step 5: Solve for x
    x = 70,504,530.27/10,889.40
  6. Step 6: Final answer
    x = 6,474.60

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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.