Home / 8,189.72-11,298.52-5,163.84

Finding the Fourth Proportional to 8,189.72, 11,298.52 and 5,163.84

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Solution

The fourth proportional to 8,189.72, 11,298.52 and 5,163.84 is: 7,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.72 : 11,298.52 = 5,163.84 : x
  2. Step 2: Convert to fraction form
    8,189.72/11,298.52 = 5,163.84/x
  3. Step 3: Cross multiply
    8,189.72x = 11,298.52 × 5,163.84
  4. Step 4: Simplify right side
    8,189.72x = 58,343,749.52
  5. Step 5: Solve for x
    x = 58,343,749.52/8,189.72
  6. Step 6: Final answer
    x = 7,124.03

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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.