Home / 11,761.20-16,220.76-8,574.48

Finding the Fourth Proportional to 11,761.20, 16,220.76 and 8,574.48

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Solution

The fourth proportional to 11,761.20, 16,220.76 and 8,574.48 is: 11,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.20 : 16,220.76 = 8,574.48 : x
  2. Step 2: Convert to fraction form
    11,761.20/16,220.76 = 8,574.48/x
  3. Step 3: Cross multiply
    11,761.20x = 16,220.76 × 8,574.48
  4. Step 4: Simplify right side
    11,761.20x = 139,084,582.20
  5. Step 5: Solve for x
    x = 139,084,582.20/11,761.20
  6. Step 6: Final answer
    x = 11,825.71

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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.