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Finding the Fourth Proportional to 11,520.56, 17,270.56 and 4,498.94

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Solution

The fourth proportional to 11,520.56, 17,270.56 and 4,498.94 is: 6,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.56 : 17,270.56 = 4,498.94 : x
  2. Step 2: Convert to fraction form
    11,520.56/17,270.56 = 4,498.94/x
  3. Step 3: Cross multiply
    11,520.56x = 17,270.56 × 4,498.94
  4. Step 4: Simplify right side
    11,520.56x = 77,699,213.21
  5. Step 5: Solve for x
    x = 77,699,213.21/11,520.56
  6. Step 6: Final answer
    x = 6,744.40

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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.