Home / 13,253.92-18,293.88-8,215.27

Finding the Fourth Proportional to 13,253.92, 18,293.88 and 8,215.27

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Solution

The fourth proportional to 13,253.92, 18,293.88 and 8,215.27 is: 11,339.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.92 : 18,293.88 = 8,215.27 : x
  2. Step 2: Convert to fraction form
    13,253.92/18,293.88 = 8,215.27/x
  3. Step 3: Cross multiply
    13,253.92x = 18,293.88 × 8,215.27
  4. Step 4: Simplify right side
    13,253.92x = 150,289,163.55
  5. Step 5: Solve for x
    x = 150,289,163.55/13,253.92
  6. Step 6: Final answer
    x = 11,339.22

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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.