Home / 13,534.43-18,681.28-9,286.18

Finding the Fourth Proportional to 13,534.43, 18,681.28 and 9,286.18

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Solution

The fourth proportional to 13,534.43, 18,681.28 and 9,286.18 is: 12,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534.43 : 18,681.28 = 9,286.18 : x
  2. Step 2: Convert to fraction form
    13,534.43/18,681.28 = 9,286.18/x
  3. Step 3: Cross multiply
    13,534.43x = 18,681.28 × 9,286.18
  4. Step 4: Simplify right side
    13,534.43x = 173,477,635.30
  5. Step 5: Solve for x
    x = 173,477,635.30/13,534.43
  6. Step 6: Final answer
    x = 12,817.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.