Home / 12,759.12-19,130.37-4,438.50

Finding the Fourth Proportional to 12,759.12, 19,130.37 and 4,438.50

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Solution

The fourth proportional to 12,759.12, 19,130.37 and 4,438.50 is: 6,654.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.12 : 19,130.37 = 4,438.50 : x
  2. Step 2: Convert to fraction form
    12,759.12/19,130.37 = 4,438.50/x
  3. Step 3: Cross multiply
    12,759.12x = 19,130.37 × 4,438.50
  4. Step 4: Simplify right side
    12,759.12x = 84,910,147.25
  5. Step 5: Solve for x
    x = 84,910,147.25/12,759.12
  6. Step 6: Final answer
    x = 6,654.86

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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.