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Finding the Fourth Proportional to 18,602.04, 27,903.06 and 8,211.72

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Solution

The fourth proportional to 18,602.04, 27,903.06 and 8,211.72 is: 12,317.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.04 : 27,903.06 = 8,211.72 : x
  2. Step 2: Convert to fraction form
    18,602.04/27,903.06 = 8,211.72/x
  3. Step 3: Cross multiply
    18,602.04x = 27,903.06 × 8,211.72
  4. Step 4: Simplify right side
    18,602.04x = 229,132,115.86
  5. Step 5: Solve for x
    x = 229,132,115.86/18,602.04
  6. Step 6: Final answer
    x = 12,317.58

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Double scale
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Similar ratio
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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.