Home / 13,308.13-18,367.04-8,591.50

Finding the Fourth Proportional to 13,308.13, 18,367.04 and 8,591.50

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Solution

The fourth proportional to 13,308.13, 18,367.04 and 8,591.50 is: 11,857.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.13 : 18,367.04 = 8,591.50 : x
  2. Step 2: Convert to fraction form
    13,308.13/18,367.04 = 8,591.50/x
  3. Step 3: Cross multiply
    13,308.13x = 18,367.04 × 8,591.50
  4. Step 4: Simplify right side
    13,308.13x = 157,800,289.37
  5. Step 5: Solve for x
    x = 157,800,289.37/13,308.13
  6. Step 6: Final answer
    x = 11,857.44

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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.