Home / 13,194.10-18,207.61-7,225.66

Finding the Fourth Proportional to 13,194.10, 18,207.61 and 7,225.66

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Solution

The fourth proportional to 13,194.10, 18,207.61 and 7,225.66 is: 9,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.10 : 18,207.61 = 7,225.66 : x
  2. Step 2: Convert to fraction form
    13,194.10/18,207.61 = 7,225.66/x
  3. Step 3: Cross multiply
    13,194.10x = 18,207.61 × 7,225.66
  4. Step 4: Simplify right side
    13,194.10x = 131,561,999.27
  5. Step 5: Solve for x
    x = 131,561,999.27/13,194.10
  6. Step 6: Final answer
    x = 9,971.27

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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.