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Finding the Fourth Proportional to 13,045.01, 17,997.86 and 7,379.21

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Solution

The fourth proportional to 13,045.01, 17,997.86 and 7,379.21 is: 10,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.01 : 17,997.86 = 7,379.21 : x
  2. Step 2: Convert to fraction form
    13,045.01/17,997.86 = 7,379.21/x
  3. Step 3: Cross multiply
    13,045.01x = 17,997.86 × 7,379.21
  4. Step 4: Simplify right side
    13,045.01x = 132,809,861.61
  5. Step 5: Solve for x
    x = 132,809,861.61/13,045.01
  6. Step 6: Final answer
    x = 10,180.90

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1.5x scale

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.