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Finding the Fourth Proportional to 11,668.80, 17,503.06 and 2,903.79

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Solution

The fourth proportional to 11,668.80, 17,503.06 and 2,903.79 is: 4,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,668.80 : 17,503.06 = 2,903.79 : x
  2. Step 2: Convert to fraction form
    11,668.80/17,503.06 = 2,903.79/x
  3. Step 3: Cross multiply
    11,668.80x = 17,503.06 × 2,903.79
  4. Step 4: Simplify right side
    11,668.80x = 50,825,210.60
  5. Step 5: Solve for x
    x = 50,825,210.60/11,668.80
  6. Step 6: Final answer
    x = 4,355.65

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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.