Home / 18,091.45-27,119.21-8,587.11

Finding the Fourth Proportional to 18,091.45, 27,119.21 and 8,587.11

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Solution

The fourth proportional to 18,091.45, 27,119.21 and 8,587.11 is: 12,872.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091.45 : 27,119.21 = 8,587.11 : x
  2. Step 2: Convert to fraction form
    18,091.45/27,119.21 = 8,587.11/x
  3. Step 3: Cross multiply
    18,091.45x = 27,119.21 × 8,587.11
  4. Step 4: Simplify right side
    18,091.45x = 232,875,731.83
  5. Step 5: Solve for x
    x = 232,875,731.83/18,091.45
  6. Step 6: Final answer
    x = 12,872.14

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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.