Home / 10,818.03-16,228.73-3,421.78

Finding the Fourth Proportional to 10,818.03, 16,228.73 and 3,421.78

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Solution

The fourth proportional to 10,818.03, 16,228.73 and 3,421.78 is: 5,133.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.03 : 16,228.73 = 3,421.78 : x
  2. Step 2: Convert to fraction form
    10,818.03/16,228.73 = 3,421.78/x
  3. Step 3: Cross multiply
    10,818.03x = 16,228.73 × 3,421.78
  4. Step 4: Simplify right side
    10,818.03x = 55,531,143.74
  5. Step 5: Solve for x
    x = 55,531,143.74/10,818.03
  6. Step 6: Final answer
    x = 5,133.20

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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.