Home / 11,816.64-17,715.40-4,420.04

Finding the Fourth Proportional to 11,816.64, 17,715.40 and 4,420.04

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Solution

The fourth proportional to 11,816.64, 17,715.40 and 4,420.04 is: 6,626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.64 : 17,715.40 = 4,420.04 : x
  2. Step 2: Convert to fraction form
    11,816.64/17,715.40 = 4,420.04/x
  3. Step 3: Cross multiply
    11,816.64x = 17,715.40 × 4,420.04
  4. Step 4: Simplify right side
    11,816.64x = 78,302,676.99
  5. Step 5: Solve for x
    x = 78,302,676.99/11,816.64
  6. Step 6: Final answer
    x = 6,626.48

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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.