Home / 13,186.03-18,197.96-7,880.73

Finding the Fourth Proportional to 13,186.03, 18,197.96 and 7,880.73

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Solution

The fourth proportional to 13,186.03, 18,197.96 and 7,880.73 is: 10,876.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.03 : 18,197.96 = 7,880.73 : x
  2. Step 2: Convert to fraction form
    13,186.03/18,197.96 = 7,880.73/x
  3. Step 3: Cross multiply
    13,186.03x = 18,197.96 × 7,880.73
  4. Step 4: Simplify right side
    13,186.03x = 143,413,226.19
  5. Step 5: Solve for x
    x = 143,413,226.19/13,186.03
  6. Step 6: Final answer
    x = 10,876.15

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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.