Home / 13,789.08-19,029.06-8,199

Finding the Fourth Proportional to 13,789.08, 19,029.06 and 8,199

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Solution

The fourth proportional to 13,789.08, 19,029.06 and 8,199 is: 11,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.08 : 19,029.06 = 8,199 : x
  2. Step 2: Convert to fraction form
    13,789.08/19,029.06 = 8,199/x
  3. Step 3: Cross multiply
    13,789.08x = 19,029.06 × 8,199
  4. Step 4: Simplify right side
    13,789.08x = 156,019,262.94
  5. Step 5: Solve for x
    x = 156,019,262.94/13,789.08
  6. Step 6: Final answer
    x = 11,314.70

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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.