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Finding the Fourth Proportional to 8,883.93, 12,170.80 and 8,551.56

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Solution

The fourth proportional to 8,883.93, 12,170.80 and 8,551.56 is: 11,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,883.93 : 12,170.80 = 8,551.56 : x
  2. Step 2: Convert to fraction form
    8,883.93/12,170.80 = 8,551.56/x
  3. Step 3: Cross multiply
    8,883.93x = 12,170.80 × 8,551.56
  4. Step 4: Simplify right side
    8,883.93x = 104,079,326.45
  5. Step 5: Solve for x
    x = 104,079,326.45/8,883.93
  6. Step 6: Final answer
    x = 11,715.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.