Home / 13,194.12-18,208.32-7,225.77

Finding the Fourth Proportional to 13,194.12, 18,208.32 and 7,225.77

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Solution

The fourth proportional to 13,194.12, 18,208.32 and 7,225.77 is: 9,971.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.12 : 18,208.32 = 7,225.77 : x
  2. Step 2: Convert to fraction form
    13,194.12/18,208.32 = 7,225.77/x
  3. Step 3: Cross multiply
    13,194.12x = 18,208.32 × 7,225.77
  4. Step 4: Simplify right side
    13,194.12x = 131,569,132.41
  5. Step 5: Solve for x
    x = 131,569,132.41/13,194.12
  6. Step 6: Final answer
    x = 9,971.80

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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.