Home / 13,359.28-20,040.84-4,126

Finding the Fourth Proportional to 13,359.28, 20,040.84 and 4,126

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Solution

The fourth proportional to 13,359.28, 20,040.84 and 4,126 is: 6,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.28 : 20,040.84 = 4,126 : x
  2. Step 2: Convert to fraction form
    13,359.28/20,040.84 = 4,126/x
  3. Step 3: Cross multiply
    13,359.28x = 20,040.84 × 4,126
  4. Step 4: Simplify right side
    13,359.28x = 82,688,505.84
  5. Step 5: Solve for x
    x = 82,688,505.84/13,359.28
  6. Step 6: Final answer
    x = 6,189.59

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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.