Home / 8,936.20-13,405.74-4,005.82

Finding the Fourth Proportional to 8,936.20, 13,405.74 and 4,005.82

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Solution

The fourth proportional to 8,936.20, 13,405.74 and 4,005.82 is: 6,009.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.20 : 13,405.74 = 4,005.82 : x
  2. Step 2: Convert to fraction form
    8,936.20/13,405.74 = 4,005.82/x
  3. Step 3: Cross multiply
    8,936.20x = 13,405.74 × 4,005.82
  4. Step 4: Simplify right side
    8,936.20x = 53,700,981.41
  5. Step 5: Solve for x
    x = 53,700,981.41/8,936.20
  6. Step 6: Final answer
    x = 6,009.38

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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.