Home / 10,505.88-15,759.63-3,485.61

Finding the Fourth Proportional to 10,505.88, 15,759.63 and 3,485.61

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Solution

The fourth proportional to 10,505.88, 15,759.63 and 3,485.61 is: 5,228.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505.88 : 15,759.63 = 3,485.61 : x
  2. Step 2: Convert to fraction form
    10,505.88/15,759.63 = 3,485.61/x
  3. Step 3: Cross multiply
    10,505.88x = 15,759.63 × 3,485.61
  4. Step 4: Simplify right side
    10,505.88x = 54,931,923.92
  5. Step 5: Solve for x
    x = 54,931,923.92/10,505.88
  6. Step 6: Final answer
    x = 5,228.68

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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.