Home / 18,115.77-27,182.90-8,763.81

Finding the Fourth Proportional to 18,115.77, 27,182.90 and 8,763.81

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Solution

The fourth proportional to 18,115.77, 27,182.90 and 8,763.81 is: 13,150.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.77 : 27,182.90 = 8,763.81 : x
  2. Step 2: Convert to fraction form
    18,115.77/27,182.90 = 8,763.81/x
  3. Step 3: Cross multiply
    18,115.77x = 27,182.90 × 8,763.81
  4. Step 4: Simplify right side
    18,115.77x = 238,225,770.85
  5. Step 5: Solve for x
    x = 238,225,770.85/18,115.77
  6. Step 6: Final answer
    x = 13,150.19

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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.