Home / 13,286.03-18,334.15-7,616.82

Finding the Fourth Proportional to 13,286.03, 18,334.15 and 7,616.82

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Solution

The fourth proportional to 13,286.03, 18,334.15 and 7,616.82 is: 10,510.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.03 : 18,334.15 = 7,616.82 : x
  2. Step 2: Convert to fraction form
    13,286.03/18,334.15 = 7,616.82/x
  3. Step 3: Cross multiply
    13,286.03x = 18,334.15 × 7,616.82
  4. Step 4: Simplify right side
    13,286.03x = 139,647,970.11
  5. Step 5: Solve for x
    x = 139,647,970.11/13,286.03
  6. Step 6: Final answer
    x = 10,510.89

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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.