Home / 13,163.28-19,749.80-6,147.24

Finding the Fourth Proportional to 13,163.28, 19,749.80 and 6,147.24

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Solution

The fourth proportional to 13,163.28, 19,749.80 and 6,147.24 is: 9,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.28 : 19,749.80 = 6,147.24 : x
  2. Step 2: Convert to fraction form
    13,163.28/19,749.80 = 6,147.24/x
  3. Step 3: Cross multiply
    13,163.28x = 19,749.80 × 6,147.24
  4. Step 4: Simplify right side
    13,163.28x = 121,406,760.55
  5. Step 5: Solve for x
    x = 121,406,760.55/13,163.28
  6. Step 6: Final answer
    x = 9,223.14

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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.