Home / 13,184.50-18,193.92-7,215.02

Finding the Fourth Proportional to 13,184.50, 18,193.92 and 7,215.02

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Solution

The fourth proportional to 13,184.50, 18,193.92 and 7,215.02 is: 9,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.50 : 18,193.92 = 7,215.02 : x
  2. Step 2: Convert to fraction form
    13,184.50/18,193.92 = 7,215.02/x
  3. Step 3: Cross multiply
    13,184.50x = 18,193.92 × 7,215.02
  4. Step 4: Simplify right side
    13,184.50x = 131,269,496.68
  5. Step 5: Solve for x
    x = 131,269,496.68/13,184.50
  6. Step 6: Final answer
    x = 9,956.35

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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.