Home / 15,146.53-20,903.19-10,107.54

Finding the Fourth Proportional to 15,146.53, 20,903.19 and 10,107.54

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Solution

The fourth proportional to 15,146.53, 20,903.19 and 10,107.54 is: 13,949.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.53 : 20,903.19 = 10,107.54 : x
  2. Step 2: Convert to fraction form
    15,146.53/20,903.19 = 10,107.54/x
  3. Step 3: Cross multiply
    15,146.53x = 20,903.19 × 10,107.54
  4. Step 4: Simplify right side
    15,146.53x = 211,279,791.15
  5. Step 5: Solve for x
    x = 211,279,791.15/15,146.53
  6. Step 6: Final answer
    x = 13,949.06

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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.