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Finding the Fourth Proportional to 8,875.38, 13,361.16 and 8,100.36

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Solution

The fourth proportional to 8,875.38, 13,361.16 and 8,100.36 is: 12,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.38 : 13,361.16 = 8,100.36 : x
  2. Step 2: Convert to fraction form
    8,875.38/13,361.16 = 8,100.36/x
  3. Step 3: Cross multiply
    8,875.38x = 13,361.16 × 8,100.36
  4. Step 4: Simplify right side
    8,875.38x = 108,230,206.02
  5. Step 5: Solve for x
    x = 108,230,206.02/8,875.38
  6. Step 6: Final answer
    x = 12,194.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.