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Finding the Fourth Proportional to 11,580.71, 17,372.09 and 3,260.80

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Solution

The fourth proportional to 11,580.71, 17,372.09 and 3,260.80 is: 4,891.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.71 : 17,372.09 = 3,260.80 : x
  2. Step 2: Convert to fraction form
    11,580.71/17,372.09 = 3,260.80/x
  3. Step 3: Cross multiply
    11,580.71x = 17,372.09 × 3,260.80
  4. Step 4: Simplify right side
    11,580.71x = 56,646,807.91
  5. Step 5: Solve for x
    x = 56,646,807.91/11,580.71
  6. Step 6: Final answer
    x = 4,891.48

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1.5x scale

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.