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Finding the Fourth Proportional to 8,655.03, 12,983.79 and 2,729.90

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Solution

The fourth proportional to 8,655.03, 12,983.79 and 2,729.90 is: 4,095.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.03 : 12,983.79 = 2,729.90 : x
  2. Step 2: Convert to fraction form
    8,655.03/12,983.79 = 2,729.90/x
  3. Step 3: Cross multiply
    8,655.03x = 12,983.79 × 2,729.90
  4. Step 4: Simplify right side
    8,655.03x = 35,444,448.32
  5. Step 5: Solve for x
    x = 35,444,448.32/8,655.03
  6. Step 6: Final answer
    x = 4,095.24

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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.