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Finding the Fourth Proportional to 8,986.69, 13,489.44 and 4,310.65

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Solution

The fourth proportional to 8,986.69, 13,489.44 and 4,310.65 is: 6,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.69 : 13,489.44 = 4,310.65 : x
  2. Step 2: Convert to fraction form
    8,986.69/13,489.44 = 4,310.65/x
  3. Step 3: Cross multiply
    8,986.69x = 13,489.44 × 4,310.65
  4. Step 4: Simplify right side
    8,986.69x = 58,148,254.54
  5. Step 5: Solve for x
    x = 58,148,254.54/8,986.69
  6. Step 6: Final answer
    x = 6,470.49

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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.