Home / 14,780.27-20,400.19-9,745.38

Finding the Fourth Proportional to 14,780.27, 20,400.19 and 9,745.38

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Solution

The fourth proportional to 14,780.27, 20,400.19 and 9,745.38 is: 13,450.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.27 : 20,400.19 = 9,745.38 : x
  2. Step 2: Convert to fraction form
    14,780.27/20,400.19 = 9,745.38/x
  3. Step 3: Cross multiply
    14,780.27x = 20,400.19 × 9,745.38
  4. Step 4: Simplify right side
    14,780.27x = 198,807,579.26
  5. Step 5: Solve for x
    x = 198,807,579.26/14,780.27
  6. Step 6: Final answer
    x = 13,450.87

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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.