Home / 12,322.13-17,019.11-8,336.32

Finding the Fourth Proportional to 12,322.13, 17,019.11 and 8,336.32

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Solution

The fourth proportional to 12,322.13, 17,019.11 and 8,336.32 is: 11,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,322.13 : 17,019.11 = 8,336.32 : x
  2. Step 2: Convert to fraction form
    12,322.13/17,019.11 = 8,336.32/x
  3. Step 3: Cross multiply
    12,322.13x = 17,019.11 × 8,336.32
  4. Step 4: Simplify right side
    12,322.13x = 141,876,725.37
  5. Step 5: Solve for x
    x = 141,876,725.37/12,322.13
  6. Step 6: Final answer
    x = 11,513.98

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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.