Home / 13,789.08-19,018.13-12,197.43

Finding the Fourth Proportional to 13,789.08, 19,018.13 and 12,197.43

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Solution

The fourth proportional to 13,789.08, 19,018.13 and 12,197.43 is: 16,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.08 : 19,018.13 = 12,197.43 : x
  2. Step 2: Convert to fraction form
    13,789.08/19,018.13 = 12,197.43/x
  3. Step 3: Cross multiply
    13,789.08x = 19,018.13 × 12,197.43
  4. Step 4: Simplify right side
    13,789.08x = 231,972,248.42
  5. Step 5: Solve for x
    x = 231,972,248.42/13,789.08
  6. Step 6: Final answer
    x = 16,822.90

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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.