Home / 10,926.40-16,390.08-3,135.04

Finding the Fourth Proportional to 10,926.40, 16,390.08 and 3,135.04

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Solution

The fourth proportional to 10,926.40, 16,390.08 and 3,135.04 is: 4,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.40 : 16,390.08 = 3,135.04 : x
  2. Step 2: Convert to fraction form
    10,926.40/16,390.08 = 3,135.04/x
  3. Step 3: Cross multiply
    10,926.40x = 16,390.08 × 3,135.04
  4. Step 4: Simplify right side
    10,926.40x = 51,383,556.40
  5. Step 5: Solve for x
    x = 51,383,556.40/10,926.40
  6. Step 6: Final answer
    x = 4,702.70

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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.