Home / 10,505.13-15,759.57-3,485.56

Finding the Fourth Proportional to 10,505.13, 15,759.57 and 3,485.56

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Solution

The fourth proportional to 10,505.13, 15,759.57 and 3,485.56 is: 5,228.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505.13 : 15,759.57 = 3,485.56 : x
  2. Step 2: Convert to fraction form
    10,505.13/15,759.57 = 3,485.56/x
  3. Step 3: Cross multiply
    10,505.13x = 15,759.57 × 3,485.56
  4. Step 4: Simplify right side
    10,505.13x = 54,930,967.62
  5. Step 5: Solve for x
    x = 54,930,967.62/10,505.13
  6. Step 6: Final answer
    x = 5,228.97

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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.