Home / 18,280.62-27,404.73-8,915.40

Finding the Fourth Proportional to 18,280.62, 27,404.73 and 8,915.40

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Solution

The fourth proportional to 18,280.62, 27,404.73 and 8,915.40 is: 13,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.62 : 27,404.73 = 8,915.40 : x
  2. Step 2: Convert to fraction form
    18,280.62/27,404.73 = 8,915.40/x
  3. Step 3: Cross multiply
    18,280.62x = 27,404.73 × 8,915.40
  4. Step 4: Simplify right side
    18,280.62x = 244,324,129.84
  5. Step 5: Solve for x
    x = 244,324,129.84/18,280.62
  6. Step 6: Final answer
    x = 13,365.20

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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.