Home / 13,606.92-20,412.40-4,839.72

Finding the Fourth Proportional to 13,606.92, 20,412.40 and 4,839.72

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Solution

The fourth proportional to 13,606.92, 20,412.40 and 4,839.72 is: 7,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.92 : 20,412.40 = 4,839.72 : x
  2. Step 2: Convert to fraction form
    13,606.92/20,412.40 = 4,839.72/x
  3. Step 3: Cross multiply
    13,606.92x = 20,412.40 × 4,839.72
  4. Step 4: Simplify right side
    13,606.92x = 98,790,300.53
  5. Step 5: Solve for x
    x = 98,790,300.53/13,606.92
  6. Step 6: Final answer
    x = 7,260.30

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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.