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Finding the Fourth Proportional to 9,129.67, 13,700.17 and 5,845.12

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Solution

The fourth proportional to 9,129.67, 13,700.17 and 5,845.12 is: 8,771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.67 : 13,700.17 = 5,845.12 : x
  2. Step 2: Convert to fraction form
    9,129.67/13,700.17 = 5,845.12/x
  3. Step 3: Cross multiply
    9,129.67x = 13,700.17 × 5,845.12
  4. Step 4: Simplify right side
    9,129.67x = 80,079,137.67
  5. Step 5: Solve for x
    x = 80,079,137.67/9,129.67
  6. Step 6: Final answer
    x = 8,771.31

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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.