Home / 12,869.44-17,759.79-7,567.30

Finding the Fourth Proportional to 12,869.44, 17,759.79 and 7,567.30

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Solution

The fourth proportional to 12,869.44, 17,759.79 and 7,567.30 is: 10,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.44 : 17,759.79 = 7,567.30 : x
  2. Step 2: Convert to fraction form
    12,869.44/17,759.79 = 7,567.30/x
  3. Step 3: Cross multiply
    12,869.44x = 17,759.79 × 7,567.30
  4. Step 4: Simplify right side
    12,869.44x = 134,393,658.87
  5. Step 5: Solve for x
    x = 134,393,658.87/12,869.44
  6. Step 6: Final answer
    x = 10,442.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.