Home / 18,300.75-27,461.51-8,440.03

Finding the Fourth Proportional to 18,300.75, 27,461.51 and 8,440.03

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Solution

The fourth proportional to 18,300.75, 27,461.51 and 8,440.03 is: 12,664.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.75 : 27,461.51 = 8,440.03 : x
  2. Step 2: Convert to fraction form
    18,300.75/27,461.51 = 8,440.03/x
  3. Step 3: Cross multiply
    18,300.75x = 27,461.51 × 8,440.03
  4. Step 4: Simplify right side
    18,300.75x = 231,775,926.05
  5. Step 5: Solve for x
    x = 231,775,926.05/18,300.75
  6. Step 6: Final answer
    x = 12,664.83

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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.