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Finding the Fourth Proportional to 8,018.76, 12,019.93 and 4,062.68

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Solution

The fourth proportional to 8,018.76, 12,019.93 and 4,062.68 is: 6,089.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,018.76 : 12,019.93 = 4,062.68 : x
  2. Step 2: Convert to fraction form
    8,018.76/12,019.93 = 4,062.68/x
  3. Step 3: Cross multiply
    8,018.76x = 12,019.93 × 4,062.68
  4. Step 4: Simplify right side
    8,018.76x = 48,833,129.21
  5. Step 5: Solve for x
    x = 48,833,129.21/8,018.76
  6. Step 6: Final answer
    x = 6,089.86

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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.