Home / 8,324.80-11,478.90-5,673.76

Finding the Fourth Proportional to 8,324.80, 11,478.90 and 5,673.76

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Solution

The fourth proportional to 8,324.80, 11,478.90 and 5,673.76 is: 7,823.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.80 : 11,478.90 = 5,673.76 : x
  2. Step 2: Convert to fraction form
    8,324.80/11,478.90 = 5,673.76/x
  3. Step 3: Cross multiply
    8,324.80x = 11,478.90 × 5,673.76
  4. Step 4: Simplify right side
    8,324.80x = 65,128,523.66
  5. Step 5: Solve for x
    x = 65,128,523.66/8,324.80
  6. Step 6: Final answer
    x = 7,823.43

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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.