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Finding the Fourth Proportional to 9,063.72, 12,513.74 and 8,117.84

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Solution

The fourth proportional to 9,063.72, 12,513.74 and 8,117.84 is: 11,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,063.72 : 12,513.74 = 8,117.84 : x
  2. Step 2: Convert to fraction form
    9,063.72/12,513.74 = 8,117.84/x
  3. Step 3: Cross multiply
    9,063.72x = 12,513.74 × 8,117.84
  4. Step 4: Simplify right side
    9,063.72x = 101,584,435.96
  5. Step 5: Solve for x
    x = 101,584,435.96/9,063.72
  6. Step 6: Final answer
    x = 11,207.81

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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.