Home / 13,198.01-18,216.63-8,956.17

Finding the Fourth Proportional to 13,198.01, 18,216.63 and 8,956.17

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Solution

The fourth proportional to 13,198.01, 18,216.63 and 8,956.17 is: 12,361.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.01 : 18,216.63 = 8,956.17 : x
  2. Step 2: Convert to fraction form
    13,198.01/18,216.63 = 8,956.17/x
  3. Step 3: Cross multiply
    13,198.01x = 18,216.63 × 8,956.17
  4. Step 4: Simplify right side
    13,198.01x = 163,151,235.11
  5. Step 5: Solve for x
    x = 163,151,235.11/13,198.01
  6. Step 6: Final answer
    x = 12,361.81

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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.