Home / 10,986.56-16,479.88-2,666.54

Finding the Fourth Proportional to 10,986.56, 16,479.88 and 2,666.54

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Solution

The fourth proportional to 10,986.56, 16,479.88 and 2,666.54 is: 3,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.56 : 16,479.88 = 2,666.54 : x
  2. Step 2: Convert to fraction form
    10,986.56/16,479.88 = 2,666.54/x
  3. Step 3: Cross multiply
    10,986.56x = 16,479.88 × 2,666.54
  4. Step 4: Simplify right side
    10,986.56x = 43,944,259.22
  5. Step 5: Solve for x
    x = 43,944,259.22/10,986.56
  6. Step 6: Final answer
    x = 3,999.82

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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.