Home / 15,385.25-23,121.16-9,146.38

Finding the Fourth Proportional to 15,385.25, 23,121.16 and 9,146.38

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Solution

The fourth proportional to 15,385.25, 23,121.16 and 9,146.38 is: 13,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.25 : 23,121.16 = 9,146.38 : x
  2. Step 2: Convert to fraction form
    15,385.25/23,121.16 = 9,146.38/x
  3. Step 3: Cross multiply
    15,385.25x = 23,121.16 × 9,146.38
  4. Step 4: Simplify right side
    15,385.25x = 211,474,834.73
  5. Step 5: Solve for x
    x = 211,474,834.73/15,385.25
  6. Step 6: Final answer
    x = 13,745.30

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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.