Home / 8,905.61-13,358.25-2,665.64

Finding the Fourth Proportional to 8,905.61, 13,358.25 and 2,665.64

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Solution

The fourth proportional to 8,905.61, 13,358.25 and 2,665.64 is: 3,998.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.61 : 13,358.25 = 2,665.64 : x
  2. Step 2: Convert to fraction form
    8,905.61/13,358.25 = 2,665.64/x
  3. Step 3: Cross multiply
    8,905.61x = 13,358.25 × 2,665.64
  4. Step 4: Simplify right side
    8,905.61x = 35,608,285.53
  5. Step 5: Solve for x
    x = 35,608,285.53/8,905.61
  6. Step 6: Final answer
    x = 3,998.41

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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.