Home / 12,759.38-19,140.18-3,525.38

Finding the Fourth Proportional to 12,759.38, 19,140.18 and 3,525.38

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Solution

The fourth proportional to 12,759.38, 19,140.18 and 3,525.38 is: 5,288.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.38 : 19,140.18 = 3,525.38 : x
  2. Step 2: Convert to fraction form
    12,759.38/19,140.18 = 3,525.38/x
  3. Step 3: Cross multiply
    12,759.38x = 19,140.18 × 3,525.38
  4. Step 4: Simplify right side
    12,759.38x = 67,476,407.77
  5. Step 5: Solve for x
    x = 67,476,407.77/12,759.38
  6. Step 6: Final answer
    x = 5,288.38

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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.