Home / 13,703.46-20,533.32-8,143.62

Finding the Fourth Proportional to 13,703.46, 20,533.32 and 8,143.62

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Solution

The fourth proportional to 13,703.46, 20,533.32 and 8,143.62 is: 12,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.46 : 20,533.32 = 8,143.62 : x
  2. Step 2: Convert to fraction form
    13,703.46/20,533.32 = 8,143.62/x
  3. Step 3: Cross multiply
    13,703.46x = 20,533.32 × 8,143.62
  4. Step 4: Simplify right side
    13,703.46x = 167,215,555.42
  5. Step 5: Solve for x
    x = 167,215,555.42/13,703.46
  6. Step 6: Final answer
    x = 12,202.43

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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.