Home / 18,623.10-27,910.89-8,740.56

Finding the Fourth Proportional to 18,623.10, 27,910.89 and 8,740.56

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Solution

The fourth proportional to 18,623.10, 27,910.89 and 8,740.56 is: 13,099.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623.10 : 27,910.89 = 8,740.56 : x
  2. Step 2: Convert to fraction form
    18,623.10/27,910.89 = 8,740.56/x
  3. Step 3: Cross multiply
    18,623.10x = 27,910.89 × 8,740.56
  4. Step 4: Simplify right side
    18,623.10x = 243,956,808.70
  5. Step 5: Solve for x
    x = 243,956,808.70/18,623.10
  6. Step 6: Final answer
    x = 13,099.69

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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.