Home / 15,745.28-23,619.15-6,380.87

Finding the Fourth Proportional to 15,745.28, 23,619.15 and 6,380.87

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Solution

The fourth proportional to 15,745.28, 23,619.15 and 6,380.87 is: 9,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,745.28 : 23,619.15 = 6,380.87 : x
  2. Step 2: Convert to fraction form
    15,745.28/23,619.15 = 6,380.87/x
  3. Step 3: Cross multiply
    15,745.28x = 23,619.15 × 6,380.87
  4. Step 4: Simplify right side
    15,745.28x = 150,710,725.66
  5. Step 5: Solve for x
    x = 150,710,725.66/15,745.28
  6. Step 6: Final answer
    x = 9,571.80

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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.