Home / 13,392.24-18,496.42-9,135.99

Finding the Fourth Proportional to 13,392.24, 18,496.42 and 9,135.99

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Solution

The fourth proportional to 13,392.24, 18,496.42 and 9,135.99 is: 12,617.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.24 : 18,496.42 = 9,135.99 : x
  2. Step 2: Convert to fraction form
    13,392.24/18,496.42 = 9,135.99/x
  3. Step 3: Cross multiply
    13,392.24x = 18,496.42 × 9,135.99
  4. Step 4: Simplify right side
    13,392.24x = 168,983,085.32
  5. Step 5: Solve for x
    x = 168,983,085.32/13,392.24
  6. Step 6: Final answer
    x = 12,617.99

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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.