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Finding the Fourth Proportional to 18,260.64, 27,390.96 and 5,114.96

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Solution

The fourth proportional to 18,260.64, 27,390.96 and 5,114.96 is: 7,672.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,260.64 : 27,390.96 = 5,114.96 : x
  2. Step 2: Convert to fraction form
    18,260.64/27,390.96 = 5,114.96/x
  3. Step 3: Cross multiply
    18,260.64x = 27,390.96 × 5,114.96
  4. Step 4: Simplify right side
    18,260.64x = 140,103,664.76
  5. Step 5: Solve for x
    x = 140,103,664.76/18,260.64
  6. Step 6: Final answer
    x = 7,672.44

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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.