Home / 10,929.75-16,394.40-3,540.30

Finding the Fourth Proportional to 10,929.75, 16,394.40 and 3,540.30

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Solution

The fourth proportional to 10,929.75, 16,394.40 and 3,540.30 is: 5,310.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.75 : 16,394.40 = 3,540.30 : x
  2. Step 2: Convert to fraction form
    10,929.75/16,394.40 = 3,540.30/x
  3. Step 3: Cross multiply
    10,929.75x = 16,394.40 × 3,540.30
  4. Step 4: Simplify right side
    10,929.75x = 58,041,094.32
  5. Step 5: Solve for x
    x = 58,041,094.32/10,929.75
  6. Step 6: Final answer
    x = 5,310.38

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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.