Home / 13,517.10-20,285.38-4,759.38

Finding the Fourth Proportional to 13,517.10, 20,285.38 and 4,759.38

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Solution

The fourth proportional to 13,517.10, 20,285.38 and 4,759.38 is: 7,142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.10 : 20,285.38 = 4,759.38 : x
  2. Step 2: Convert to fraction form
    13,517.10/20,285.38 = 4,759.38/x
  3. Step 3: Cross multiply
    13,517.10x = 20,285.38 × 4,759.38
  4. Step 4: Simplify right side
    13,517.10x = 96,545,831.86
  5. Step 5: Solve for x
    x = 96,545,831.86/13,517.10
  6. Step 6: Final answer
    x = 7,142.50

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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.