Home / 12,528.33-17,288.36-6,861.95

Finding the Fourth Proportional to 12,528.33, 17,288.36 and 6,861.95

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Solution

The fourth proportional to 12,528.33, 17,288.36 and 6,861.95 is: 9,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.33 : 17,288.36 = 6,861.95 : x
  2. Step 2: Convert to fraction form
    12,528.33/17,288.36 = 6,861.95/x
  3. Step 3: Cross multiply
    12,528.33x = 17,288.36 × 6,861.95
  4. Step 4: Simplify right side
    12,528.33x = 118,631,861.90
  5. Step 5: Solve for x
    x = 118,631,861.90/12,528.33
  6. Step 6: Final answer
    x = 9,469.09

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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.