Home / 8,908.55-13,360.69-2,666.88

Finding the Fourth Proportional to 8,908.55, 13,360.69 and 2,666.88

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Solution

The fourth proportional to 8,908.55, 13,360.69 and 2,666.88 is: 3,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.55 : 13,360.69 = 2,666.88 : x
  2. Step 2: Convert to fraction form
    8,908.55/13,360.69 = 2,666.88/x
  3. Step 3: Cross multiply
    8,908.55x = 13,360.69 × 2,666.88
  4. Step 4: Simplify right side
    8,908.55x = 35,631,350.28
  5. Step 5: Solve for x
    x = 35,631,350.28/8,908.55
  6. Step 6: Final answer
    x = 3,999.68

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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.