Home / 13,163.10-19,744.65-8,238.30

Finding the Fourth Proportional to 13,163.10, 19,744.65 and 8,238.30

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Solution

The fourth proportional to 13,163.10, 19,744.65 and 8,238.30 is: 12,357.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.10 : 19,744.65 = 8,238.30 : x
  2. Step 2: Convert to fraction form
    13,163.10/19,744.65 = 8,238.30/x
  3. Step 3: Cross multiply
    13,163.10x = 19,744.65 × 8,238.30
  4. Step 4: Simplify right side
    13,163.10x = 162,662,350.10
  5. Step 5: Solve for x
    x = 162,662,350.10/13,163.10
  6. Step 6: Final answer
    x = 12,357.45

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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.