Home / 8,508.50-12,762.75-3,318.02

Finding the Fourth Proportional to 8,508.50, 12,762.75 and 3,318.02

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Solution

The fourth proportional to 8,508.50, 12,762.75 and 3,318.02 is: 4,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.50 : 12,762.75 = 3,318.02 : x
  2. Step 2: Convert to fraction form
    8,508.50/12,762.75 = 3,318.02/x
  3. Step 3: Cross multiply
    8,508.50x = 12,762.75 × 3,318.02
  4. Step 4: Simplify right side
    8,508.50x = 42,347,059.76
  5. Step 5: Solve for x
    x = 42,347,059.76/8,508.50
  6. Step 6: Final answer
    x = 4,977.03

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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.