Home / 8,902.08-12,286.32-8,508.36

Finding the Fourth Proportional to 8,902.08, 12,286.32 and 8,508.36

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Solution

The fourth proportional to 8,902.08, 12,286.32 and 8,508.36 is: 11,742.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.08 : 12,286.32 = 8,508.36 : x
  2. Step 2: Convert to fraction form
    8,902.08/12,286.32 = 8,508.36/x
  3. Step 3: Cross multiply
    8,902.08x = 12,286.32 × 8,508.36
  4. Step 4: Simplify right side
    8,902.08x = 104,536,433.64
  5. Step 5: Solve for x
    x = 104,536,433.64/8,902.08
  6. Step 6: Final answer
    x = 11,742.92

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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.