Home / 11,615.49-16,028.86-6,579.61

Finding the Fourth Proportional to 11,615.49, 16,028.86 and 6,579.61

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Solution

The fourth proportional to 11,615.49, 16,028.86 and 6,579.61 is: 9,079.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.49 : 16,028.86 = 6,579.61 : x
  2. Step 2: Convert to fraction form
    11,615.49/16,028.86 = 6,579.61/x
  3. Step 3: Cross multiply
    11,615.49x = 16,028.86 × 6,579.61
  4. Step 4: Simplify right side
    11,615.49x = 105,463,562.31
  5. Step 5: Solve for x
    x = 105,463,562.31/11,615.49
  6. Step 6: Final answer
    x = 9,079.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.