Home / 13,163.20-18,165.48-7,195.24

Finding the Fourth Proportional to 13,163.20, 18,165.48 and 7,195.24

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Solution

The fourth proportional to 13,163.20, 18,165.48 and 7,195.24 is: 9,929.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.20 : 18,165.48 = 7,195.24 : x
  2. Step 2: Convert to fraction form
    13,163.20/18,165.48 = 7,195.24/x
  3. Step 3: Cross multiply
    13,163.20x = 18,165.48 × 7,195.24
  4. Step 4: Simplify right side
    13,163.20x = 130,704,988.32
  5. Step 5: Solve for x
    x = 130,704,988.32/13,163.20
  6. Step 6: Final answer
    x = 9,929.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.