Home / 11,581.70-15,982.74-6,276.51

Finding the Fourth Proportional to 11,581.70, 15,982.74 and 6,276.51

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Solution

The fourth proportional to 11,581.70, 15,982.74 and 6,276.51 is: 8,661.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.70 : 15,982.74 = 6,276.51 : x
  2. Step 2: Convert to fraction form
    11,581.70/15,982.74 = 6,276.51/x
  3. Step 3: Cross multiply
    11,581.70x = 15,982.74 × 6,276.51
  4. Step 4: Simplify right side
    11,581.70x = 100,315,827.44
  5. Step 5: Solve for x
    x = 100,315,827.44/11,581.70
  6. Step 6: Final answer
    x = 8,661.58

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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.