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Finding the Fourth Proportional to 13,322.32, 19,992.39 and 5,531.12

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Solution

The fourth proportional to 13,322.32, 19,992.39 and 5,531.12 is: 8,300.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.32 : 19,992.39 = 5,531.12 : x
  2. Step 2: Convert to fraction form
    13,322.32/19,992.39 = 5,531.12/x
  3. Step 3: Cross multiply
    13,322.32x = 19,992.39 × 5,531.12
  4. Step 4: Simplify right side
    13,322.32x = 110,580,308.18
  5. Step 5: Solve for x
    x = 110,580,308.18/13,322.32
  6. Step 6: Final answer
    x = 8,300.38

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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.