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Finding the Fourth Proportional to 8,954.06, 13,393.79 and 8,289.76

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Solution

The fourth proportional to 8,954.06, 13,393.79 and 8,289.76 is: 12,400.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.06 : 13,393.79 = 8,289.76 : x
  2. Step 2: Convert to fraction form
    8,954.06/13,393.79 = 8,289.76/x
  3. Step 3: Cross multiply
    8,954.06x = 13,393.79 × 8,289.76
  4. Step 4: Simplify right side
    8,954.06x = 111,031,229.66
  5. Step 5: Solve for x
    x = 111,031,229.66/8,954.06
  6. Step 6: Final answer
    x = 12,400.11

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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.