Home / 13,505.21-20,265.10-6,579.71

Finding the Fourth Proportional to 13,505.21, 20,265.10 and 6,579.71

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Solution

The fourth proportional to 13,505.21, 20,265.10 and 6,579.71 is: 9,873.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.21 : 20,265.10 = 6,579.71 : x
  2. Step 2: Convert to fraction form
    13,505.21/20,265.10 = 6,579.71/x
  3. Step 3: Cross multiply
    13,505.21x = 20,265.10 × 6,579.71
  4. Step 4: Simplify right side
    13,505.21x = 133,338,439.34
  5. Step 5: Solve for x
    x = 133,338,439.34/13,505.21
  6. Step 6: Final answer
    x = 9,873.11

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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.