Home / 13,385.12-20,096.07-6,815.72

Finding the Fourth Proportional to 13,385.12, 20,096.07 and 6,815.72

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Solution

The fourth proportional to 13,385.12, 20,096.07 and 6,815.72 is: 10,232.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.12 : 20,096.07 = 6,815.72 : x
  2. Step 2: Convert to fraction form
    13,385.12/20,096.07 = 6,815.72/x
  3. Step 3: Cross multiply
    13,385.12x = 20,096.07 × 6,815.72
  4. Step 4: Simplify right side
    13,385.12x = 136,969,186.22
  5. Step 5: Solve for x
    x = 136,969,186.22/13,385.12
  6. Step 6: Final answer
    x = 10,232.94

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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.