Home / 10,815.08-16,223.06-3,419.68

Finding the Fourth Proportional to 10,815.08, 16,223.06 and 3,419.68

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Solution

The fourth proportional to 10,815.08, 16,223.06 and 3,419.68 is: 5,129.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.08 : 16,223.06 = 3,419.68 : x
  2. Step 2: Convert to fraction form
    10,815.08/16,223.06 = 3,419.68/x
  3. Step 3: Cross multiply
    10,815.08x = 16,223.06 × 3,419.68
  4. Step 4: Simplify right side
    10,815.08x = 55,477,673.82
  5. Step 5: Solve for x
    x = 55,477,673.82/10,815.08
  6. Step 6: Final answer
    x = 5,129.66

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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.