Home / 11,581.68-15,982.75-6,276.50

Finding the Fourth Proportional to 11,581.68, 15,982.75 and 6,276.50

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Solution

The fourth proportional to 11,581.68, 15,982.75 and 6,276.50 is: 8,661.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.68 : 15,982.75 = 6,276.50 : x
  2. Step 2: Convert to fraction form
    11,581.68/15,982.75 = 6,276.50/x
  3. Step 3: Cross multiply
    11,581.68x = 15,982.75 × 6,276.50
  4. Step 4: Simplify right side
    11,581.68x = 100,315,718.24
  5. Step 5: Solve for x
    x = 100,315,718.24/11,581.68
  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.