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Finding the Fourth Proportional to 13,993.46, 20,995.04 and 6,207.74

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Solution

The fourth proportional to 13,993.46, 20,995.04 and 6,207.74 is: 9,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.46 : 20,995.04 = 6,207.74 : x
  2. Step 2: Convert to fraction form
    13,993.46/20,995.04 = 6,207.74/x
  3. Step 3: Cross multiply
    13,993.46x = 20,995.04 × 6,207.74
  4. Step 4: Simplify right side
    13,993.46x = 130,331,660.15
  5. Step 5: Solve for x
    x = 130,331,660.15/13,993.46
  6. Step 6: Final answer
    x = 9,313.76

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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.