Home / 7,820.25-11,730.38-3,923.74

Finding the Fourth Proportional to 7,820.25, 11,730.38 and 3,923.74

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Solution

The fourth proportional to 7,820.25, 11,730.38 and 3,923.74 is: 5,885.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.25 : 11,730.38 = 3,923.74 : x
  2. Step 2: Convert to fraction form
    7,820.25/11,730.38 = 3,923.74/x
  3. Step 3: Cross multiply
    7,820.25x = 11,730.38 × 3,923.74
  4. Step 4: Simplify right side
    7,820.25x = 46,026,961.22
  5. Step 5: Solve for x
    x = 46,026,961.22/7,820.25
  6. Step 6: Final answer
    x = 5,885.61

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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.