Home / 13,628.12-20,450.11-5,730.07

Finding the Fourth Proportional to 13,628.12, 20,450.11 and 5,730.07

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Solution

The fourth proportional to 13,628.12, 20,450.11 and 5,730.07 is: 8,598.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.12 : 20,450.11 = 5,730.07 : x
  2. Step 2: Convert to fraction form
    13,628.12/20,450.11 = 5,730.07/x
  3. Step 3: Cross multiply
    13,628.12x = 20,450.11 × 5,730.07
  4. Step 4: Simplify right side
    13,628.12x = 117,180,487.37
  5. Step 5: Solve for x
    x = 117,180,487.37/13,628.12
  6. Step 6: Final answer
    x = 8,598.43

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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.