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Finding the Fourth Proportional to 8,908.03, 12,309.35 and 8,475.70

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Solution

The fourth proportional to 8,908.03, 12,309.35 and 8,475.70 is: 11,711.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.03 : 12,309.35 = 8,475.70 : x
  2. Step 2: Convert to fraction form
    8,908.03/12,309.35 = 8,475.70/x
  3. Step 3: Cross multiply
    8,908.03x = 12,309.35 × 8,475.70
  4. Step 4: Simplify right side
    8,908.03x = 104,330,253.87
  5. Step 5: Solve for x
    x = 104,330,253.87/8,908.03
  6. Step 6: Final answer
    x = 11,711.94

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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.