Home / 7,834.78-11,756.34-3,455.32

Finding the Fourth Proportional to 7,834.78, 11,756.34 and 3,455.32

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Solution

The fourth proportional to 7,834.78, 11,756.34 and 3,455.32 is: 5,184.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,834.78 : 11,756.34 = 3,455.32 : x
  2. Step 2: Convert to fraction form
    7,834.78/11,756.34 = 3,455.32/x
  3. Step 3: Cross multiply
    7,834.78x = 11,756.34 × 3,455.32
  4. Step 4: Simplify right side
    7,834.78x = 40,621,916.73
  5. Step 5: Solve for x
    x = 40,621,916.73/7,834.78
  6. Step 6: Final answer
    x = 5,184.82

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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.