Home / 7,761.74-11,642.73-4,320.86

Finding the Fourth Proportional to 7,761.74, 11,642.73 and 4,320.86

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Solution

The fourth proportional to 7,761.74, 11,642.73 and 4,320.86 is: 6,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.74 : 11,642.73 = 4,320.86 : x
  2. Step 2: Convert to fraction form
    7,761.74/11,642.73 = 4,320.86/x
  3. Step 3: Cross multiply
    7,761.74x = 11,642.73 × 4,320.86
  4. Step 4: Simplify right side
    7,761.74x = 50,306,606.35
  5. Step 5: Solve for x
    x = 50,306,606.35/7,761.74
  6. Step 6: Final answer
    x = 6,481.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.