Home / 8,715.11-13,068.55-3,164.54

Finding the Fourth Proportional to 8,715.11, 13,068.55 and 3,164.54

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Solution

The fourth proportional to 8,715.11, 13,068.55 and 3,164.54 is: 4,745.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.11 : 13,068.55 = 3,164.54 : x
  2. Step 2: Convert to fraction form
    8,715.11/13,068.55 = 3,164.54/x
  3. Step 3: Cross multiply
    8,715.11x = 13,068.55 × 3,164.54
  4. Step 4: Simplify right side
    8,715.11x = 41,355,887.83
  5. Step 5: Solve for x
    x = 41,355,887.83/8,715.11
  6. Step 6: Final answer
    x = 4,745.31

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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.