Home / 13,197.58-18,212.66-7,229.24

Finding the Fourth Proportional to 13,197.58, 18,212.66 and 7,229.24

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Solution

The fourth proportional to 13,197.58, 18,212.66 and 7,229.24 is: 9,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.58 : 18,212.66 = 7,229.24 : x
  2. Step 2: Convert to fraction form
    13,197.58/18,212.66 = 7,229.24/x
  3. Step 3: Cross multiply
    13,197.58x = 18,212.66 × 7,229.24
  4. Step 4: Simplify right side
    13,197.58x = 131,663,690.18
  5. Step 5: Solve for x
    x = 131,663,690.18/13,197.58
  6. Step 6: Final answer
    x = 9,976.35

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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.