Home / 9,965.20-13,751.76-5,717.04

Finding the Fourth Proportional to 9,965.20, 13,751.76 and 5,717.04

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Solution

The fourth proportional to 9,965.20, 13,751.76 and 5,717.04 is: 7,889.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965.20 : 13,751.76 = 5,717.04 : x
  2. Step 2: Convert to fraction form
    9,965.20/13,751.76 = 5,717.04/x
  3. Step 3: Cross multiply
    9,965.20x = 13,751.76 × 5,717.04
  4. Step 4: Simplify right side
    9,965.20x = 78,619,361.99
  5. Step 5: Solve for x
    x = 78,619,361.99/9,965.20
  6. Step 6: Final answer
    x = 7,889.39

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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.