Home / 10,858.40-16,288.63-3,838.36

Finding the Fourth Proportional to 10,858.40, 16,288.63 and 3,838.36

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Solution

The fourth proportional to 10,858.40, 16,288.63 and 3,838.36 is: 5,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.40 : 16,288.63 = 3,838.36 : x
  2. Step 2: Convert to fraction form
    10,858.40/16,288.63 = 3,838.36/x
  3. Step 3: Cross multiply
    10,858.40x = 16,288.63 × 3,838.36
  4. Step 4: Simplify right side
    10,858.40x = 62,521,625.85
  5. Step 5: Solve for x
    x = 62,521,625.85/10,858.40
  6. Step 6: Final answer
    x = 5,757.90

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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.