Home / 12,322.97-18,433.49-9,338.93

Finding the Fourth Proportional to 12,322.97, 18,433.49 and 9,338.93

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Solution

The fourth proportional to 12,322.97, 18,433.49 and 9,338.93 is: 13,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,322.97 : 18,433.49 = 9,338.93 : x
  2. Step 2: Convert to fraction form
    12,322.97/18,433.49 = 9,338.93/x
  3. Step 3: Cross multiply
    12,322.97x = 18,433.49 × 9,338.93
  4. Step 4: Simplify right side
    12,322.97x = 172,149,003.95
  5. Step 5: Solve for x
    x = 172,149,003.95/12,322.97
  6. Step 6: Final answer
    x = 13,969.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.