Home / 13,485.45-20,214.27-5,163.18

Finding the Fourth Proportional to 13,485.45, 20,214.27 and 5,163.18

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Solution

The fourth proportional to 13,485.45, 20,214.27 and 5,163.18 is: 7,739.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.45 : 20,214.27 = 5,163.18 : x
  2. Step 2: Convert to fraction form
    13,485.45/20,214.27 = 5,163.18/x
  3. Step 3: Cross multiply
    13,485.45x = 20,214.27 × 5,163.18
  4. Step 4: Simplify right side
    13,485.45x = 104,369,914.58
  5. Step 5: Solve for x
    x = 104,369,914.58/13,485.45
  6. Step 6: Final answer
    x = 7,739.45

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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.