Home / 18,487.84-27,705.82-12,318.88

Finding the Fourth Proportional to 18,487.84, 27,705.82 and 12,318.88

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Solution

The fourth proportional to 18,487.84, 27,705.82 and 12,318.88 is: 18,461.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.84 : 27,705.82 = 12,318.88 : x
  2. Step 2: Convert to fraction form
    18,487.84/27,705.82 = 12,318.88/x
  3. Step 3: Cross multiply
    18,487.84x = 27,705.82 × 12,318.88
  4. Step 4: Simplify right side
    18,487.84x = 341,304,671.88
  5. Step 5: Solve for x
    x = 341,304,671.88/18,487.84
  6. Step 6: Final answer
    x = 18,461.04

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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.