Home / 18,745.87-25,833.72-13,431.46

Finding the Fourth Proportional to 18,745.87, 25,833.72 and 13,431.46

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Solution

The fourth proportional to 18,745.87, 25,833.72 and 13,431.46 is: 18,509.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.87 : 25,833.72 = 13,431.46 : x
  2. Step 2: Convert to fraction form
    18,745.87/25,833.72 = 13,431.46/x
  3. Step 3: Cross multiply
    18,745.87x = 25,833.72 × 13,431.46
  4. Step 4: Simplify right side
    18,745.87x = 346,984,576.83
  5. Step 5: Solve for x
    x = 346,984,576.83/18,745.87
  6. Step 6: Final answer
    x = 18,509.92

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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.