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Finding the Fourth Proportional to 9,661.59, 13,359.84 and 7,668.68

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Solution

The fourth proportional to 9,661.59, 13,359.84 and 7,668.68 is: 10,604.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.59 : 13,359.84 = 7,668.68 : x
  2. Step 2: Convert to fraction form
    9,661.59/13,359.84 = 7,668.68/x
  3. Step 3: Cross multiply
    9,661.59x = 13,359.84 × 7,668.68
  4. Step 4: Simplify right side
    9,661.59x = 102,452,326.80
  5. Step 5: Solve for x
    x = 102,452,326.80/9,661.59
  6. Step 6: Final answer
    x = 10,604.09

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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.