Home / 13,163.27-18,165.71-7,195.25

Finding the Fourth Proportional to 13,163.27, 18,165.71 and 7,195.25

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Solution

The fourth proportional to 13,163.27, 18,165.71 and 7,195.25 is: 9,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.27 : 18,165.71 = 7,195.25 : x
  2. Step 2: Convert to fraction form
    13,163.27/18,165.71 = 7,195.25/x
  3. Step 3: Cross multiply
    13,163.27x = 18,165.71 × 7,195.25
  4. Step 4: Simplify right side
    13,163.27x = 130,706,888.28
  5. Step 5: Solve for x
    x = 130,706,888.28/13,163.27
  6. Step 6: Final answer
    x = 9,929.67

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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.