Home / 13,267.25-18,308.90-7,217.55

Finding the Fourth Proportional to 13,267.25, 18,308.90 and 7,217.55

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Solution

The fourth proportional to 13,267.25, 18,308.90 and 7,217.55 is: 9,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.25 : 18,308.90 = 7,217.55 : x
  2. Step 2: Convert to fraction form
    13,267.25/18,308.90 = 7,217.55/x
  3. Step 3: Cross multiply
    13,267.25x = 18,308.90 × 7,217.55
  4. Step 4: Simplify right side
    13,267.25x = 132,145,295.15
  5. Step 5: Solve for x
    x = 132,145,295.15/13,267.25
  6. Step 6: Final answer
    x = 9,960.26

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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.