Home / 13,209.10-19,813.68-3,348.38

Finding the Fourth Proportional to 13,209.10, 19,813.68 and 3,348.38

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Solution

The fourth proportional to 13,209.10, 19,813.68 and 3,348.38 is: 5,022.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.10 : 19,813.68 = 3,348.38 : x
  2. Step 2: Convert to fraction form
    13,209.10/19,813.68 = 3,348.38/x
  3. Step 3: Cross multiply
    13,209.10x = 19,813.68 × 3,348.38
  4. Step 4: Simplify right side
    13,209.10x = 66,343,729.84
  5. Step 5: Solve for x
    x = 66,343,729.84/13,209.10
  6. Step 6: Final answer
    x = 5,022.58

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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.