Home / 10,489.28-15,735.68-5,224.56

Finding the Fourth Proportional to 10,489.28, 15,735.68 and 5,224.56

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Solution

The fourth proportional to 10,489.28, 15,735.68 and 5,224.56 is: 7,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.28 : 15,735.68 = 5,224.56 : x
  2. Step 2: Convert to fraction form
    10,489.28/15,735.68 = 5,224.56/x
  3. Step 3: Cross multiply
    10,489.28x = 15,735.68 × 5,224.56
  4. Step 4: Simplify right side
    10,489.28x = 82,212,004.30
  5. Step 5: Solve for x
    x = 82,212,004.30/10,489.28
  6. Step 6: Final answer
    x = 7,837.72

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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.