Home / 11,210.40-16,819.25-3,819.56

Finding the Fourth Proportional to 11,210.40, 16,819.25 and 3,819.56

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Solution

The fourth proportional to 11,210.40, 16,819.25 and 3,819.56 is: 5,730.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.40 : 16,819.25 = 3,819.56 : x
  2. Step 2: Convert to fraction form
    11,210.40/16,819.25 = 3,819.56/x
  3. Step 3: Cross multiply
    11,210.40x = 16,819.25 × 3,819.56
  4. Step 4: Simplify right side
    11,210.40x = 64,242,031.34
  5. Step 5: Solve for x
    x = 64,242,031.34/11,210.40
  6. Step 6: Final answer
    x = 5,730.57

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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.