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Finding the Fourth Proportional to 18,235.59, 27,316.86 and 8,361.28

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Solution

The fourth proportional to 18,235.59, 27,316.86 and 8,361.28 is: 12,525.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.59 : 27,316.86 = 8,361.28 : x
  2. Step 2: Convert to fraction form
    18,235.59/27,316.86 = 8,361.28/x
  3. Step 3: Cross multiply
    18,235.59x = 27,316.86 × 8,361.28
  4. Step 4: Simplify right side
    18,235.59x = 228,403,915.18
  5. Step 5: Solve for x
    x = 228,403,915.18/18,235.59
  6. Step 6: Final answer
    x = 12,525.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.