Home / 13,163.35-18,165.12-7,195.06

Finding the Fourth Proportional to 13,163.35, 18,165.12 and 7,195.06

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Solution

The fourth proportional to 13,163.35, 18,165.12 and 7,195.06 is: 9,929.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.35 : 18,165.12 = 7,195.06 : x
  2. Step 2: Convert to fraction form
    13,163.35/18,165.12 = 7,195.06/x
  3. Step 3: Cross multiply
    13,163.35x = 18,165.12 × 7,195.06
  4. Step 4: Simplify right side
    13,163.35x = 130,699,128.31
  5. Step 5: Solve for x
    x = 130,699,128.31/13,163.35
  6. Step 6: Final answer
    x = 9,929.02

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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.