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Finding the Fourth Proportional to 18,106.56, 27,211.68 and 8,879.04

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Solution

The fourth proportional to 18,106.56, 27,211.68 and 8,879.04 is: 13,343.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,106.56 : 27,211.68 = 8,879.04 : x
  2. Step 2: Convert to fraction form
    18,106.56/27,211.68 = 8,879.04/x
  3. Step 3: Cross multiply
    18,106.56x = 27,211.68 × 8,879.04
  4. Step 4: Simplify right side
    18,106.56x = 241,613,595.19
  5. Step 5: Solve for x
    x = 241,613,595.19/18,106.56
  6. Step 6: Final answer
    x = 13,343.98

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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.