Home / 7,765.43-10,716.21-4,228.61

Finding the Fourth Proportional to 7,765.43, 10,716.21 and 4,228.61

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Solution

The fourth proportional to 7,765.43, 10,716.21 and 4,228.61 is: 5,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.43 : 10,716.21 = 4,228.61 : x
  2. Step 2: Convert to fraction form
    7,765.43/10,716.21 = 4,228.61/x
  3. Step 3: Cross multiply
    7,765.43x = 10,716.21 × 4,228.61
  4. Step 4: Simplify right side
    7,765.43x = 45,314,619.19
  5. Step 5: Solve for x
    x = 45,314,619.19/7,765.43
  6. Step 6: Final answer
    x = 5,835.43

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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.