Home / 12,884.35-19,308.30-5,481.36

Finding the Fourth Proportional to 12,884.35, 19,308.30 and 5,481.36

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Solution

The fourth proportional to 12,884.35, 19,308.30 and 5,481.36 is: 8,214.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.35 : 19,308.30 = 5,481.36 : x
  2. Step 2: Convert to fraction form
    12,884.35/19,308.30 = 5,481.36/x
  3. Step 3: Cross multiply
    12,884.35x = 19,308.30 × 5,481.36
  4. Step 4: Simplify right side
    12,884.35x = 105,835,681.16
  5. Step 5: Solve for x
    x = 105,835,681.16/12,884.35
  6. Step 6: Final answer
    x = 8,214.28

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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.