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Finding the Fourth Proportional to 8,684.39, 13,030.23 and 3,751.49

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Solution

The fourth proportional to 8,684.39, 13,030.23 and 3,751.49 is: 5,628.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.39 : 13,030.23 = 3,751.49 : x
  2. Step 2: Convert to fraction form
    8,684.39/13,030.23 = 3,751.49/x
  3. Step 3: Cross multiply
    8,684.39x = 13,030.23 × 3,751.49
  4. Step 4: Simplify right side
    8,684.39x = 48,882,777.54
  5. Step 5: Solve for x
    x = 48,882,777.54/8,684.39
  6. Step 6: Final answer
    x = 5,628.81

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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.