Home / 7,765.53-11,649.84-2,218.93

Finding the Fourth Proportional to 7,765.53, 11,649.84 and 2,218.93

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Solution

The fourth proportional to 7,765.53, 11,649.84 and 2,218.93 is: 3,328.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.53 : 11,649.84 = 2,218.93 : x
  2. Step 2: Convert to fraction form
    7,765.53/11,649.84 = 2,218.93/x
  3. Step 3: Cross multiply
    7,765.53x = 11,649.84 × 2,218.93
  4. Step 4: Simplify right side
    7,765.53x = 25,850,179.47
  5. Step 5: Solve for x
    x = 25,850,179.47/7,765.53
  6. Step 6: Final answer
    x = 3,328.84

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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.