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Finding the Fourth Proportional to 8,668.04, 11,947.78 and 6,776.28

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Solution

The fourth proportional to 8,668.04, 11,947.78 and 6,776.28 is: 9,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.04 : 11,947.78 = 6,776.28 : x
  2. Step 2: Convert to fraction form
    8,668.04/11,947.78 = 6,776.28/x
  3. Step 3: Cross multiply
    8,668.04x = 11,947.78 × 6,776.28
  4. Step 4: Simplify right side
    8,668.04x = 80,961,502.66
  5. Step 5: Solve for x
    x = 80,961,502.66/8,668.04
  6. Step 6: Final answer
    x = 9,340.23

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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.