Home / 10,315.99-15,474.03-3,739.60

Finding the Fourth Proportional to 10,315.99, 15,474.03 and 3,739.60

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Solution

The fourth proportional to 10,315.99, 15,474.03 and 3,739.60 is: 5,609.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.99 : 15,474.03 = 3,739.60 : x
  2. Step 2: Convert to fraction form
    10,315.99/15,474.03 = 3,739.60/x
  3. Step 3: Cross multiply
    10,315.99x = 15,474.03 × 3,739.60
  4. Step 4: Simplify right side
    10,315.99x = 57,866,682.59
  5. Step 5: Solve for x
    x = 57,866,682.59/10,315.99
  6. Step 6: Final answer
    x = 5,609.42

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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.