Home / 10,515.88-15,776.86-3,399.97

Finding the Fourth Proportional to 10,515.88, 15,776.86 and 3,399.97

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Solution

The fourth proportional to 10,515.88, 15,776.86 and 3,399.97 is: 5,100.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.88 : 15,776.86 = 3,399.97 : x
  2. Step 2: Convert to fraction form
    10,515.88/15,776.86 = 3,399.97/x
  3. Step 3: Cross multiply
    10,515.88x = 15,776.86 × 3,399.97
  4. Step 4: Simplify right side
    10,515.88x = 53,640,771.81
  5. Step 5: Solve for x
    x = 53,640,771.81/10,515.88
  6. Step 6: Final answer
    x = 5,100.93

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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.