Home / 8,685.63-11,976.66-6,451.65

Finding the Fourth Proportional to 8,685.63, 11,976.66 and 6,451.65

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Solution

The fourth proportional to 8,685.63, 11,976.66 and 6,451.65 is: 8,896.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.63 : 11,976.66 = 6,451.65 : x
  2. Step 2: Convert to fraction form
    8,685.63/11,976.66 = 6,451.65/x
  3. Step 3: Cross multiply
    8,685.63x = 11,976.66 × 6,451.65
  4. Step 4: Simplify right side
    8,685.63x = 77,269,218.49
  5. Step 5: Solve for x
    x = 77,269,218.49/8,685.63
  6. Step 6: Final answer
    x = 8,896.21

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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.