Home / 7,913.92-11,881.68-4,021.08

Finding the Fourth Proportional to 7,913.92, 11,881.68 and 4,021.08

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Solution

The fourth proportional to 7,913.92, 11,881.68 and 4,021.08 is: 6,037.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.92 : 11,881.68 = 4,021.08 : x
  2. Step 2: Convert to fraction form
    7,913.92/11,881.68 = 4,021.08/x
  3. Step 3: Cross multiply
    7,913.92x = 11,881.68 × 4,021.08
  4. Step 4: Simplify right side
    7,913.92x = 47,777,185.81
  5. Step 5: Solve for x
    x = 47,777,185.81/7,913.92
  6. Step 6: Final answer
    x = 6,037.11

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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.