Home / 13,857.12-20,790.12-4,966.46

Finding the Fourth Proportional to 13,857.12, 20,790.12 and 4,966.46

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Solution

The fourth proportional to 13,857.12, 20,790.12 and 4,966.46 is: 7,451.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.12 : 20,790.12 = 4,966.46 : x
  2. Step 2: Convert to fraction form
    13,857.12/20,790.12 = 4,966.46/x
  3. Step 3: Cross multiply
    13,857.12x = 20,790.12 × 4,966.46
  4. Step 4: Simplify right side
    13,857.12x = 103,253,195.42
  5. Step 5: Solve for x
    x = 103,253,195.42/13,857.12
  6. Step 6: Final answer
    x = 7,451.27

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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.