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Finding the Fourth Proportional to 8,776.92, 13,150.80 and 7,668.84

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Solution

The fourth proportional to 8,776.92, 13,150.80 and 7,668.84 is: 11,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.92 : 13,150.80 = 7,668.84 : x
  2. Step 2: Convert to fraction form
    8,776.92/13,150.80 = 7,668.84/x
  3. Step 3: Cross multiply
    8,776.92x = 13,150.80 × 7,668.84
  4. Step 4: Simplify right side
    8,776.92x = 100,851,381.07
  5. Step 5: Solve for x
    x = 100,851,381.07/8,776.92
  6. Step 6: Final answer
    x = 11,490.52

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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.