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Finding the Fourth Proportional to 11,640.99, 17,455.11 and 4,613.89

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Solution

The fourth proportional to 11,640.99, 17,455.11 and 4,613.89 is: 6,918.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.99 : 17,455.11 = 4,613.89 : x
  2. Step 2: Convert to fraction form
    11,640.99/17,455.11 = 4,613.89/x
  3. Step 3: Cross multiply
    11,640.99x = 17,455.11 × 4,613.89
  4. Step 4: Simplify right side
    11,640.99x = 80,535,955.22
  5. Step 5: Solve for x
    x = 80,535,955.22/11,640.99
  6. Step 6: Final answer
    x = 6,918.31

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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.