Home / 13,759.38-20,632.40-6,731.16

Finding the Fourth Proportional to 13,759.38, 20,632.40 and 6,731.16

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Solution

The fourth proportional to 13,759.38, 20,632.40 and 6,731.16 is: 10,093.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759.38 : 20,632.40 = 6,731.16 : x
  2. Step 2: Convert to fraction form
    13,759.38/20,632.40 = 6,731.16/x
  3. Step 3: Cross multiply
    13,759.38x = 20,632.40 × 6,731.16
  4. Step 4: Simplify right side
    13,759.38x = 138,880,025.94
  5. Step 5: Solve for x
    x = 138,880,025.94/13,759.38
  6. Step 6: Final answer
    x = 10,093.48

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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.