Home / 13,268.67-19,907.79-6,689.90

Finding the Fourth Proportional to 13,268.67, 19,907.79 and 6,689.90

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Solution

The fourth proportional to 13,268.67, 19,907.79 and 6,689.90 is: 10,037.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.67 : 19,907.79 = 6,689.90 : x
  2. Step 2: Convert to fraction form
    13,268.67/19,907.79 = 6,689.90/x
  3. Step 3: Cross multiply
    13,268.67x = 19,907.79 × 6,689.90
  4. Step 4: Simplify right side
    13,268.67x = 133,181,228.74
  5. Step 5: Solve for x
    x = 133,181,228.74/13,268.67
  6. Step 6: Final answer
    x = 10,037.27

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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.