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Finding the Fourth Proportional to 7,776.56, 10,731.93 and 4,419.52

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Solution

The fourth proportional to 7,776.56, 10,731.93 and 4,419.52 is: 6,099.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.56 : 10,731.93 = 4,419.52 : x
  2. Step 2: Convert to fraction form
    7,776.56/10,731.93 = 4,419.52/x
  3. Step 3: Cross multiply
    7,776.56x = 10,731.93 × 4,419.52
  4. Step 4: Simplify right side
    7,776.56x = 47,429,935.87
  5. Step 5: Solve for x
    x = 47,429,935.87/7,776.56
  6. Step 6: Final answer
    x = 6,099.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.