Home / 11,247.68-15,507.24-7,704.56

Finding the Fourth Proportional to 11,247.68, 15,507.24 and 7,704.56

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Solution

The fourth proportional to 11,247.68, 15,507.24 and 7,704.56 is: 10,622.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.68 : 15,507.24 = 7,704.56 : x
  2. Step 2: Convert to fraction form
    11,247.68/15,507.24 = 7,704.56/x
  3. Step 3: Cross multiply
    11,247.68x = 15,507.24 × 7,704.56
  4. Step 4: Simplify right side
    11,247.68x = 119,476,461.01
  5. Step 5: Solve for x
    x = 119,476,461.01/11,247.68
  6. Step 6: Final answer
    x = 10,622.32

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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.