Home / 13,882.56-20,824.08-5,112.96

Finding the Fourth Proportional to 13,882.56, 20,824.08 and 5,112.96

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Solution

The fourth proportional to 13,882.56, 20,824.08 and 5,112.96 is: 7,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,882.56 : 20,824.08 = 5,112.96 : x
  2. Step 2: Convert to fraction form
    13,882.56/20,824.08 = 5,112.96/x
  3. Step 3: Cross multiply
    13,882.56x = 20,824.08 × 5,112.96
  4. Step 4: Simplify right side
    13,882.56x = 106,472,688.08
  5. Step 5: Solve for x
    x = 106,472,688.08/13,882.56
  6. Step 6: Final answer
    x = 7,669.53

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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.