Home / 7,775.84-11,645.28-4,260.60

Finding the Fourth Proportional to 7,775.84, 11,645.28 and 4,260.60

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Solution

The fourth proportional to 7,775.84, 11,645.28 and 4,260.60 is: 6,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.84 : 11,645.28 = 4,260.60 : x
  2. Step 2: Convert to fraction form
    7,775.84/11,645.28 = 4,260.60/x
  3. Step 3: Cross multiply
    7,775.84x = 11,645.28 × 4,260.60
  4. Step 4: Simplify right side
    7,775.84x = 49,615,879.97
  5. Step 5: Solve for x
    x = 49,615,879.97/7,775.84
  6. Step 6: Final answer
    x = 6,380.77

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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.